diff --git a/vendor/github.com/Sirupsen/logrus/.gitignore b/vendor/github.com/Sirupsen/logrus/.gitignore
new file mode 100644
index 0000000..6b7d7d1
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/.gitignore
@@ -0,0 +1,2 @@
+logrus
+vendor
diff --git a/vendor/github.com/Sirupsen/logrus/.travis.yml b/vendor/github.com/Sirupsen/logrus/.travis.yml
new file mode 100644
index 0000000..1f953be
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/.travis.yml
@@ -0,0 +1,51 @@
+language: go
+env:
+  - GOMAXPROCS=4 GORACE=halt_on_error=1
+matrix:
+  include:
+    - go: 1.10.x
+      install:
+        - go get github.com/stretchr/testify/assert
+        - go get golang.org/x/crypto/ssh/terminal
+        - go get golang.org/x/sys/unix
+        - go get golang.org/x/sys/windows
+      script:
+        - go test -race -v ./...
+    - go: 1.11.x
+      env: GO111MODULE=on
+      install:
+        - go mod download
+      script:
+        - go test -race -v ./...
+    - go: 1.11.x
+      env: GO111MODULE=off
+      install:
+        - go get github.com/stretchr/testify/assert
+        - go get golang.org/x/crypto/ssh/terminal
+        - go get golang.org/x/sys/unix
+        - go get golang.org/x/sys/windows
+      script:
+        - go test -race -v ./...
+    - go: 1.10.x
+      install:
+        - go get github.com/stretchr/testify/assert
+        - go get golang.org/x/crypto/ssh/terminal
+        - go get golang.org/x/sys/unix
+        - go get golang.org/x/sys/windows
+      script:
+        - go test -race -v -tags appengine ./...
+    - go: 1.11.x
+      env: GO111MODULE=on
+      install:
+        - go mod download
+      script:
+        - go test -race -v -tags appengine ./...
+    - go: 1.11.x
+      env: GO111MODULE=off
+      install:
+        - go get github.com/stretchr/testify/assert
+        - go get golang.org/x/crypto/ssh/terminal
+        - go get golang.org/x/sys/unix
+        - go get golang.org/x/sys/windows
+      script:
+        - go test -race -v -tags appengine ./...
diff --git a/vendor/github.com/Sirupsen/logrus/CHANGELOG.md b/vendor/github.com/Sirupsen/logrus/CHANGELOG.md
index f2c2bc2..cb85d9f 100644
--- a/vendor/github.com/Sirupsen/logrus/CHANGELOG.md
+++ b/vendor/github.com/Sirupsen/logrus/CHANGELOG.md
@@ -1,3 +1,102 @@
+# 1.2.0
+This new release introduces:
+  * A new method `SetReportCaller` in the `Logger` to enable the file, line and calling function from which the trace has been issued
+  * A new trace level named `Trace` whose level is below `Debug`
+  * A configurable exit function to be called upon a Fatal trace
+  * The `Level` object now implements `encoding.TextUnmarshaler` interface
+
+# 1.1.1
+This is a bug fix release.
+  * fix the build break on Solaris
+  * don't drop a whole trace in JSONFormatter when a field param is a function pointer which can not be serialized
+
+# 1.1.0
+This new release introduces:
+  * several fixes:
+    * a fix for a race condition on entry formatting
+    * proper cleanup of previously used entries before putting them back in the pool
+    * the extra new line at the end of message in text formatter has been removed
+  * a new global public API to check if a level is activated: IsLevelEnabled
+  * the following methods have been added to the Logger object
+    * IsLevelEnabled
+    * SetFormatter
+    * SetOutput
+    * ReplaceHooks
+  * introduction of go module
+  * an indent configuration for the json formatter
+  * output colour support for windows
+  * the field sort function is now configurable for text formatter
+  * the CLICOLOR and CLICOLOR\_FORCE environment variable support in text formater
+
+# 1.0.6
+
+This new release introduces:
+  * a new api WithTime which allows to easily force the time of the log entry
+    which is mostly useful for logger wrapper
+  * a fix reverting the immutability of the entry given as parameter to the hooks
+    a new configuration field of the json formatter in order to put all the fields
+    in a nested dictionnary
+  * a new SetOutput method in the Logger
+  * a new configuration of the textformatter to configure the name of the default keys
+  * a new configuration of the text formatter to disable the level truncation
+
+# 1.0.5
+
+* Fix hooks race (#707)
+* Fix panic deadlock (#695)
+
+# 1.0.4
+
+* Fix race when adding hooks (#612)
+* Fix terminal check in AppEngine (#635)
+
+# 1.0.3
+
+* Replace example files with testable examples
+
+# 1.0.2
+
+* bug: quote non-string values in text formatter (#583)
+* Make (*Logger) SetLevel a public method
+
+# 1.0.1
+
+* bug: fix escaping in text formatter (#575)
+
+# 1.0.0
+
+* Officially changed name to lower-case
+* bug: colors on Windows 10 (#541)
+* bug: fix race in accessing level (#512)
+
+# 0.11.5
+
+* feature: add writer and writerlevel to entry (#372)
+
+# 0.11.4
+
+* bug: fix undefined variable on solaris (#493)
+
+# 0.11.3
+
+* formatter: configure quoting of empty values (#484)
+* formatter: configure quoting character (default is `"`) (#484)
+* bug: fix not importing io correctly in non-linux environments (#481)
+
+# 0.11.2
+
+* bug: fix windows terminal detection (#476)
+
+# 0.11.1
+
+* bug: fix tty detection with custom out (#471)
+
+# 0.11.0
+
+* performance: Use bufferpool to allocate (#370)
+* terminal: terminal detection for app-engine (#343)
+* feature: exit handler (#375)
+
 # 0.10.0
 
 * feature: Add a test hook (#180)
diff --git a/vendor/github.com/Sirupsen/logrus/README.md b/vendor/github.com/Sirupsen/logrus/README.md
index 206c746..093bb13 100644
--- a/vendor/github.com/Sirupsen/logrus/README.md
+++ b/vendor/github.com/Sirupsen/logrus/README.md
@@ -1,17 +1,24 @@
-# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/Sirupsen/logrus?status.svg)](https://godoc.org/github.com/Sirupsen/logrus)
-
-**Seeing weird case-sensitive problems?** See [this
-issue](https://github.com/sirupsen/logrus/issues/451#issuecomment-264332021).
-This change has been reverted. I apologize for causing this. I greatly
-underestimated the impact this would have. Logrus strives for stability and
-backwards compatibility and failed to provide that.
+# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/sirupsen/logrus.svg?branch=master)](https://travis-ci.org/sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/sirupsen/logrus?status.svg)](https://godoc.org/github.com/sirupsen/logrus)
 
 Logrus is a structured logger for Go (golang), completely API compatible with
-the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
-yet stable (pre 1.0). Logrus itself is completely stable and has been used in
-many large deployments. The core API is unlikely to change much but please
-version control your Logrus to make sure you aren't fetching latest `master` on
-every build.**
+the standard library logger.
+
+**Seeing weird case-sensitive problems?** It's in the past been possible to
+import Logrus as both upper- and lower-case. Due to the Go package environment,
+this caused issues in the community and we needed a standard. Some environments
+experienced problems with the upper-case variant, so the lower-case was decided.
+Everything using `logrus` will need to use the lower-case:
+`github.com/sirupsen/logrus`. Any package that isn't, should be changed.
+
+To fix Glide, see [these
+comments](https://github.com/sirupsen/logrus/issues/553#issuecomment-306591437).
+For an in-depth explanation of the casing issue, see [this
+comment](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276).
+
+**Are you interested in assisting in maintaining Logrus?** Currently I have a
+lot of obligations, and I am unable to provide Logrus with the maintainership it
+needs. If you'd like to help, please reach out to me at `simon at author's
+username dot com`.
 
 Nicely color-coded in development (when a TTY is attached, otherwise just
 plain text):
@@ -49,8 +56,45 @@
 time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
 time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
 time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
-exit status 1
 ```
+To ensure this behaviour even if a TTY is attached, set your formatter as follows:
+
+```go
+	log.SetFormatter(&log.TextFormatter{
+		DisableColors: true,
+		FullTimestamp: true,
+	})
+```
+
+#### Logging Method Name
+
+If you wish to add the calling method as a field, instruct the logger via:
+```go
+log.SetReportCaller(true)
+```
+This adds the caller as 'method' like so:
+
+```json
+{"animal":"penguin","level":"fatal","method":"github.com/sirupsen/arcticcreatures.migrate","msg":"a penguin swims by",
+"time":"2014-03-10 19:57:38.562543129 -0400 EDT"}
+```
+
+```text
+time="2015-03-26T01:27:38-04:00" level=fatal method=github.com/sirupsen/arcticcreatures.migrate msg="a penguin swims by" animal=penguin
+```
+Note that this does add measurable overhead - the cost will depend on the version of Go, but is
+between 20 and 40% in recent tests with 1.6 and 1.7.  You can validate this in your
+environment via benchmarks: 
+```
+go test -bench=.*CallerTracing
+```
+
+
+#### Case-sensitivity
+
+The organization's name was changed to lower-case--and this will not be changed
+back. If you are getting import conflicts due to case sensitivity, please use
+the lower-case import: `github.com/sirupsen/logrus`.
 
 #### Example
 
@@ -60,7 +104,7 @@
 package main
 
 import (
-  log "github.com/Sirupsen/logrus"
+  log "github.com/sirupsen/logrus"
 )
 
 func main() {
@@ -71,7 +115,7 @@
 ```
 
 Note that it's completely api-compatible with the stdlib logger, so you can
-replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"`
+replace your `log` imports everywhere with `log "github.com/sirupsen/logrus"`
 and you'll now have the flexibility of Logrus. You can customize it all you
 want:
 
@@ -80,14 +124,15 @@
 
 import (
   "os"
-  log "github.com/Sirupsen/logrus"
+  log "github.com/sirupsen/logrus"
 )
 
 func init() {
   // Log as JSON instead of the default ASCII formatter.
   log.SetFormatter(&log.JSONFormatter{})
 
-  // Output to stdout instead of the default stderr, could also be a file.
+  // Output to stdout instead of the default stderr
+  // Can be any io.Writer, see below for File example
   log.SetOutput(os.Stdout)
 
   // Only log the warning severity or above.
@@ -129,7 +174,8 @@
 package main
 
 import (
-  "github.com/Sirupsen/logrus"
+  "os"
+  "github.com/sirupsen/logrus"
 )
 
 // Create a new instance of the logger. You can have any number of instances.
@@ -138,7 +184,15 @@
 func main() {
   // The API for setting attributes is a little different than the package level
   // exported logger. See Godoc.
-  log.Out = os.Stderr
+  log.Out = os.Stdout
+
+  // You could set this to any `io.Writer` such as a file
+  // file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
+  // if err == nil {
+  //  log.Out = file
+  // } else {
+  //  log.Info("Failed to log to file, using default stderr")
+  // }
 
   log.WithFields(logrus.Fields{
     "animal": "walrus",
@@ -149,7 +203,7 @@
 
 #### Fields
 
-Logrus encourages careful, structured logging though logging fields instead of
+Logrus encourages careful, structured logging through logging fields instead of
 long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
 to send event %s to topic %s with key %d")`, you should log the much more
 discoverable:
@@ -171,6 +225,20 @@
 seen as a hint you should add a field, however, you can still use the
 `printf`-family functions with Logrus.
 
+#### Default Fields
+
+Often it's helpful to have fields _always_ attached to log statements in an
+application or parts of one. For example, you may want to always log the
+`request_id` and `user_ip` in the context of a request. Instead of writing
+`log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})` on
+every line, you can create a `logrus.Entry` to pass around instead:
+
+```go
+requestLogger := log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})
+requestLogger.Info("something happened on that request") # will log request_id and user_ip
+requestLogger.Warn("something not great happened")
+```
+
 #### Hooks
 
 You can add hooks for logging levels. For example to send errors to an exception
@@ -182,9 +250,9 @@
 
 ```go
 import (
-  log "github.com/Sirupsen/logrus"
-  "gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "aibrake"
-  logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
+  log "github.com/sirupsen/logrus"
+  "gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "airbrake"
+  logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
   "log/syslog"
 )
 
@@ -204,50 +272,15 @@
 ```
 Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
 
-| Hook  | Description |
-| ----- | ----------- |
-| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. |
-| [Airbrake "legacy"](https://github.com/gemnasium/logrus-airbrake-legacy-hook) | Send errors to an exception tracking service compatible with the Airbrake API V2. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
-| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. |
-| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
-| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
-| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. |
-| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
-| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
-| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
-| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
-| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) |
-| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
-| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
-| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
-| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
-| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
-| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
-| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
-| [Influxus] (http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB] (http://influxdata.com/) |
-| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
-| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
-| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
-| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
-| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) |
-| [KafkaLogrus](https://github.com/goibibo/KafkaLogrus) | Hook for logging to kafka |
-| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
-| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch|
-| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
-| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
-| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
-| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
-| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
-| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
-| [PostgreSQL](https://github.com/gemnasium/logrus-postgresql-hook) | Send logs to [PostgreSQL](http://postgresql.org) |
-| [Logentrus](https://github.com/puddingfactory/logentrus) | Hook for logging to [Logentries](https://logentries.com/) |
+A list of currently known of service hook can be found in this wiki [page](https://github.com/sirupsen/logrus/wiki/Hooks)
 
 
 #### Level logging
 
-Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
+Logrus has seven logging levels: Trace, Debug, Info, Warning, Error, Fatal and Panic.
 
 ```go
+log.Trace("Something very low level.")
 log.Debug("Useful debugging information.")
 log.Info("Something noteworthy happened!")
 log.Warn("You should probably take a look at this.")
@@ -290,7 +323,7 @@
 
 ```go
 import (
-  log "github.com/Sirupsen/logrus"
+  log "github.com/sirupsen/logrus"
 )
 
 init() {
@@ -317,11 +350,17 @@
   without colors.
   * *Note:* to force colored output when there is no TTY, set the `ForceColors`
     field to `true`.  To force no colored output even if there is a TTY  set the
-    `DisableColors` field to `true`
+    `DisableColors` field to `true`. For Windows, see
+    [github.com/mattn/go-colorable](https://github.com/mattn/go-colorable).
+  * When colors are enabled, levels are truncated to 4 characters by default. To disable
+    truncation set the `DisableLevelTruncation` field to `true`.
+  * All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#TextFormatter).
 * `logrus.JSONFormatter`. Logs fields as JSON.
+  * All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#JSONFormatter).
 
 Third party logging formatters:
 
+* [`FluentdFormatter`](https://github.com/joonix/log). Formats entries that can be parsed by Kubernetes and Google Container Engine.
 * [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
 * [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
 * [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
@@ -367,6 +406,18 @@
 Each line written to that writer will be printed the usual way, using formatters
 and hooks. The level for those entries is `info`.
 
+This means that we can override the standard library logger easily:
+
+```go
+logger := logrus.New()
+logger.Formatter = &logrus.JSONFormatter{}
+
+// Use logrus for standard log output
+// Note that `log` here references stdlib's log
+// Not logrus imported under the name `log`.
+log.SetOutput(logger.Writer())
+```
+
 #### Rotation
 
 Log rotation is not provided with Logrus. Log rotation should be done by an
@@ -378,7 +429,7 @@
 | Tool | Description |
 | ---- | ----------- |
 |[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.|
-|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper arround Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
+|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper around Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
 
 #### Testing
 
@@ -388,15 +439,24 @@
 * a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
 
 ```go
-logger, hook := NewNullLogger()
-logger.Error("Hello error")
+import(
+  "github.com/sirupsen/logrus"
+  "github.com/sirupsen/logrus/hooks/test"
+  "github.com/stretchr/testify/assert"
+  "testing"
+)
 
-assert.Equal(1, len(hook.Entries))
-assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
-assert.Equal("Hello error", hook.LastEntry().Message)
+func TestSomething(t*testing.T){
+  logger, hook := test.NewNullLogger()
+  logger.Error("Helloerror")
 
-hook.Reset()
-assert.Nil(hook.LastEntry())
+  assert.Equal(t, 1, len(hook.Entries))
+  assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
+  assert.Equal(t, "Helloerror", hook.LastEntry().Message)
+
+  hook.Reset()
+  assert.Nil(t, hook.LastEntry())
+}
 ```
 
 #### Fatal handlers
@@ -417,7 +477,7 @@
 
 #### Thread safety
 
-By default Logger is protected by mutex for concurrent writes, this mutex is invoked when calling hooks and writing logs.
+By default, Logger is protected by a mutex for concurrent writes. The mutex is held when calling hooks and writing logs.
 If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
 
 Situation when locking is not needed includes:
diff --git a/vendor/github.com/Sirupsen/logrus/alt_exit.go b/vendor/github.com/Sirupsen/logrus/alt_exit.go
index b4c9e84..8af9063 100644
--- a/vendor/github.com/Sirupsen/logrus/alt_exit.go
+++ b/vendor/github.com/Sirupsen/logrus/alt_exit.go
@@ -1,7 +1,7 @@
 package logrus
 
 // The following code was sourced and modified from the
-// https://bitbucket.org/tebeka/atexit package governed by the following license:
+// https://github.com/tebeka/atexit package governed by the following license:
 //
 // Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
 //
diff --git a/vendor/github.com/Sirupsen/logrus/appveyor.yml b/vendor/github.com/Sirupsen/logrus/appveyor.yml
new file mode 100644
index 0000000..96c2ce1
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/appveyor.yml
@@ -0,0 +1,14 @@
+version: "{build}"
+platform: x64
+clone_folder: c:\gopath\src\github.com\sirupsen\logrus
+environment:  
+  GOPATH: c:\gopath
+branches:  
+  only:
+    - master
+install:  
+  - set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
+  - go version
+build_script:  
+  - go get -t
+  - go test
diff --git a/vendor/github.com/Sirupsen/logrus/doc.go b/vendor/github.com/Sirupsen/logrus/doc.go
index dddd5f8..da67aba 100644
--- a/vendor/github.com/Sirupsen/logrus/doc.go
+++ b/vendor/github.com/Sirupsen/logrus/doc.go
@@ -7,7 +7,7 @@
   package main
 
   import (
-    log "github.com/Sirupsen/logrus"
+    log "github.com/sirupsen/logrus"
   )
 
   func main() {
@@ -21,6 +21,6 @@
 Output:
   time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
 
-For a full guide visit https://github.com/Sirupsen/logrus
+For a full guide visit https://github.com/sirupsen/logrus
 */
 package logrus
diff --git a/vendor/github.com/Sirupsen/logrus/entry.go b/vendor/github.com/Sirupsen/logrus/entry.go
index 4edbe7a..cc85d3a 100644
--- a/vendor/github.com/Sirupsen/logrus/entry.go
+++ b/vendor/github.com/Sirupsen/logrus/entry.go
@@ -4,11 +4,30 @@
 	"bytes"
 	"fmt"
 	"os"
+	"reflect"
+	"runtime"
+	"strings"
 	"sync"
 	"time"
 )
 
-var bufferPool *sync.Pool
+var (
+	bufferPool *sync.Pool
+
+	// qualified package name, cached at first use
+	logrusPackage string
+
+	// Positions in the call stack when tracing to report the calling method
+	minimumCallerDepth int
+
+	// Used for caller information initialisation
+	callerInitOnce sync.Once
+)
+
+const (
+	maximumCallerDepth int = 25
+	knownLogrusFrames  int = 4
+)
 
 func init() {
 	bufferPool = &sync.Pool{
@@ -16,15 +35,18 @@
 			return new(bytes.Buffer)
 		},
 	}
+
+	// start at the bottom of the stack before the package-name cache is primed
+	minimumCallerDepth = 1
 }
 
 // Defines the key when adding errors using WithError.
 var ErrorKey = "error"
 
 // An entry is the final or intermediate Logrus logging entry. It contains all
-// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
-// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
-// passed around as much as you wish to avoid field duplication.
+// the fields passed with WithField{,s}. It's finally logged when Trace, Debug,
+// Info, Warn, Error, Fatal or Panic is called on it. These objects can be
+// reused and passed around as much as you wish to avoid field duplication.
 type Entry struct {
 	Logger *Logger
 
@@ -34,21 +56,28 @@
 	// Time at which the log entry was created
 	Time time.Time
 
-	// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
+	// Level the log entry was logged at: Trace, Debug, Info, Warn, Error, Fatal or Panic
+	// This field will be set on entry firing and the value will be equal to the one in Logger struct field.
 	Level Level
 
-	// Message passed to Debug, Info, Warn, Error, Fatal or Panic
+	// Calling method, with package name
+	Caller *runtime.Frame
+
+	// Message passed to Trace, Debug, Info, Warn, Error, Fatal or Panic
 	Message string
 
-	// When formatter is called in entry.log(), an Buffer may be set to entry
+	// When formatter is called in entry.log(), a Buffer may be set to entry
 	Buffer *bytes.Buffer
+
+	// err may contain a field formatting error
+	err string
 }
 
 func NewEntry(logger *Logger) *Entry {
 	return &Entry{
 		Logger: logger,
-		// Default is three fields, give a little extra room
-		Data: make(Fields, 5),
+		// Default is three fields, plus one optional.  Give a little extra room.
+		Data: make(Fields, 6),
 	}
 }
 
@@ -79,43 +108,106 @@
 	for k, v := range entry.Data {
 		data[k] = v
 	}
+	var field_err string
 	for k, v := range fields {
-		data[k] = v
+		if t := reflect.TypeOf(v); t != nil && t.Kind() == reflect.Func {
+			field_err = fmt.Sprintf("can not add field %q", k)
+			if entry.err != "" {
+				field_err = entry.err + ", " + field_err
+			}
+		} else {
+			data[k] = v
+		}
 	}
-	return &Entry{Logger: entry.Logger, Data: data}
+	return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, err: field_err}
+}
+
+// Overrides the time of the Entry.
+func (entry *Entry) WithTime(t time.Time) *Entry {
+	return &Entry{Logger: entry.Logger, Data: entry.Data, Time: t}
+}
+
+// getPackageName reduces a fully qualified function name to the package name
+// There really ought to be to be a better way...
+func getPackageName(f string) string {
+	for {
+		lastPeriod := strings.LastIndex(f, ".")
+		lastSlash := strings.LastIndex(f, "/")
+		if lastPeriod > lastSlash {
+			f = f[:lastPeriod]
+		} else {
+			break
+		}
+	}
+
+	return f
+}
+
+// getCaller retrieves the name of the first non-logrus calling function
+func getCaller() *runtime.Frame {
+	// Restrict the lookback frames to avoid runaway lookups
+	pcs := make([]uintptr, maximumCallerDepth)
+	depth := runtime.Callers(minimumCallerDepth, pcs)
+	frames := runtime.CallersFrames(pcs[:depth])
+
+	// cache this package's fully-qualified name
+	callerInitOnce.Do(func() {
+		logrusPackage = getPackageName(runtime.FuncForPC(pcs[0]).Name())
+
+		// now that we have the cache, we can skip a minimum count of known-logrus functions
+		// XXX this is dubious, the number of frames may vary store an entry in a logger interface
+		minimumCallerDepth = knownLogrusFrames
+	})
+
+	for f, again := frames.Next(); again; f, again = frames.Next() {
+		pkg := getPackageName(f.Function)
+
+		// If the caller isn't part of this package, we're done
+		if pkg != logrusPackage {
+			return &f
+		}
+	}
+
+	// if we got here, we failed to find the caller's context
+	return nil
+}
+
+func (entry Entry) HasCaller() (has bool) {
+	return entry.Logger != nil &&
+		entry.Logger.ReportCaller &&
+		entry.Caller != nil
 }
 
 // This function is not declared with a pointer value because otherwise
 // race conditions will occur when using multiple goroutines
 func (entry Entry) log(level Level, msg string) {
 	var buffer *bytes.Buffer
-	entry.Time = time.Now()
+
+	// Default to now, but allow users to override if they want.
+	//
+	// We don't have to worry about polluting future calls to Entry#log()
+	// with this assignment because this function is declared with a
+	// non-pointer receiver.
+	if entry.Time.IsZero() {
+		entry.Time = time.Now()
+	}
+
 	entry.Level = level
 	entry.Message = msg
-
-	if err := entry.Logger.Hooks.Fire(level, &entry); err != nil {
-		entry.Logger.mu.Lock()
-		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
-		entry.Logger.mu.Unlock()
+	if entry.Logger.ReportCaller {
+		entry.Caller = getCaller()
 	}
+
+	entry.fireHooks()
+
 	buffer = bufferPool.Get().(*bytes.Buffer)
 	buffer.Reset()
 	defer bufferPool.Put(buffer)
 	entry.Buffer = buffer
-	serialized, err := entry.Logger.Formatter.Format(&entry)
+
+	entry.write()
+
 	entry.Buffer = nil
-	if err != nil {
-		entry.Logger.mu.Lock()
-		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
-		entry.Logger.mu.Unlock()
-	} else {
-		entry.Logger.mu.Lock()
-		_, err = entry.Logger.Out.Write(serialized)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
-		}
-		entry.Logger.mu.Unlock()
-	}
 
 	// To avoid Entry#log() returning a value that only would make sense for
 	// panic() to use in Entry#Panic(), we avoid the allocation by checking
@@ -125,8 +217,37 @@
 	}
 }
 
+func (entry *Entry) fireHooks() {
+	entry.Logger.mu.Lock()
+	defer entry.Logger.mu.Unlock()
+	err := entry.Logger.Hooks.Fire(entry.Level, entry)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
+	}
+}
+
+func (entry *Entry) write() {
+	entry.Logger.mu.Lock()
+	defer entry.Logger.mu.Unlock()
+	serialized, err := entry.Logger.Formatter.Format(entry)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
+	} else {
+		_, err = entry.Logger.Out.Write(serialized)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+		}
+	}
+}
+
+func (entry *Entry) Trace(args ...interface{}) {
+	if entry.Logger.IsLevelEnabled(TraceLevel) {
+		entry.log(TraceLevel, fmt.Sprint(args...))
+	}
+}
+
 func (entry *Entry) Debug(args ...interface{}) {
-	if entry.Logger.Level >= DebugLevel {
+	if entry.Logger.IsLevelEnabled(DebugLevel) {
 		entry.log(DebugLevel, fmt.Sprint(args...))
 	}
 }
@@ -136,13 +257,13 @@
 }
 
 func (entry *Entry) Info(args ...interface{}) {
-	if entry.Logger.Level >= InfoLevel {
+	if entry.Logger.IsLevelEnabled(InfoLevel) {
 		entry.log(InfoLevel, fmt.Sprint(args...))
 	}
 }
 
 func (entry *Entry) Warn(args ...interface{}) {
-	if entry.Logger.Level >= WarnLevel {
+	if entry.Logger.IsLevelEnabled(WarnLevel) {
 		entry.log(WarnLevel, fmt.Sprint(args...))
 	}
 }
@@ -152,20 +273,20 @@
 }
 
 func (entry *Entry) Error(args ...interface{}) {
-	if entry.Logger.Level >= ErrorLevel {
+	if entry.Logger.IsLevelEnabled(ErrorLevel) {
 		entry.log(ErrorLevel, fmt.Sprint(args...))
 	}
 }
 
 func (entry *Entry) Fatal(args ...interface{}) {
-	if entry.Logger.Level >= FatalLevel {
+	if entry.Logger.IsLevelEnabled(FatalLevel) {
 		entry.log(FatalLevel, fmt.Sprint(args...))
 	}
-	Exit(1)
+	entry.Logger.Exit(1)
 }
 
 func (entry *Entry) Panic(args ...interface{}) {
-	if entry.Logger.Level >= PanicLevel {
+	if entry.Logger.IsLevelEnabled(PanicLevel) {
 		entry.log(PanicLevel, fmt.Sprint(args...))
 	}
 	panic(fmt.Sprint(args...))
@@ -173,14 +294,20 @@
 
 // Entry Printf family functions
 
+func (entry *Entry) Tracef(format string, args ...interface{}) {
+	if entry.Logger.IsLevelEnabled(TraceLevel) {
+		entry.Trace(fmt.Sprintf(format, args...))
+	}
+}
+
 func (entry *Entry) Debugf(format string, args ...interface{}) {
-	if entry.Logger.Level >= DebugLevel {
+	if entry.Logger.IsLevelEnabled(DebugLevel) {
 		entry.Debug(fmt.Sprintf(format, args...))
 	}
 }
 
 func (entry *Entry) Infof(format string, args ...interface{}) {
-	if entry.Logger.Level >= InfoLevel {
+	if entry.Logger.IsLevelEnabled(InfoLevel) {
 		entry.Info(fmt.Sprintf(format, args...))
 	}
 }
@@ -190,7 +317,7 @@
 }
 
 func (entry *Entry) Warnf(format string, args ...interface{}) {
-	if entry.Logger.Level >= WarnLevel {
+	if entry.Logger.IsLevelEnabled(WarnLevel) {
 		entry.Warn(fmt.Sprintf(format, args...))
 	}
 }
@@ -200,34 +327,40 @@
 }
 
 func (entry *Entry) Errorf(format string, args ...interface{}) {
-	if entry.Logger.Level >= ErrorLevel {
+	if entry.Logger.IsLevelEnabled(ErrorLevel) {
 		entry.Error(fmt.Sprintf(format, args...))
 	}
 }
 
 func (entry *Entry) Fatalf(format string, args ...interface{}) {
-	if entry.Logger.Level >= FatalLevel {
+	if entry.Logger.IsLevelEnabled(FatalLevel) {
 		entry.Fatal(fmt.Sprintf(format, args...))
 	}
-	Exit(1)
+	entry.Logger.Exit(1)
 }
 
 func (entry *Entry) Panicf(format string, args ...interface{}) {
-	if entry.Logger.Level >= PanicLevel {
+	if entry.Logger.IsLevelEnabled(PanicLevel) {
 		entry.Panic(fmt.Sprintf(format, args...))
 	}
 }
 
 // Entry Println family functions
 
+func (entry *Entry) Traceln(args ...interface{}) {
+	if entry.Logger.IsLevelEnabled(TraceLevel) {
+		entry.Trace(entry.sprintlnn(args...))
+	}
+}
+
 func (entry *Entry) Debugln(args ...interface{}) {
-	if entry.Logger.Level >= DebugLevel {
+	if entry.Logger.IsLevelEnabled(DebugLevel) {
 		entry.Debug(entry.sprintlnn(args...))
 	}
 }
 
 func (entry *Entry) Infoln(args ...interface{}) {
-	if entry.Logger.Level >= InfoLevel {
+	if entry.Logger.IsLevelEnabled(InfoLevel) {
 		entry.Info(entry.sprintlnn(args...))
 	}
 }
@@ -237,7 +370,7 @@
 }
 
 func (entry *Entry) Warnln(args ...interface{}) {
-	if entry.Logger.Level >= WarnLevel {
+	if entry.Logger.IsLevelEnabled(WarnLevel) {
 		entry.Warn(entry.sprintlnn(args...))
 	}
 }
@@ -247,20 +380,20 @@
 }
 
 func (entry *Entry) Errorln(args ...interface{}) {
-	if entry.Logger.Level >= ErrorLevel {
+	if entry.Logger.IsLevelEnabled(ErrorLevel) {
 		entry.Error(entry.sprintlnn(args...))
 	}
 }
 
 func (entry *Entry) Fatalln(args ...interface{}) {
-	if entry.Logger.Level >= FatalLevel {
+	if entry.Logger.IsLevelEnabled(FatalLevel) {
 		entry.Fatal(entry.sprintlnn(args...))
 	}
-	Exit(1)
+	entry.Logger.Exit(1)
 }
 
 func (entry *Entry) Panicln(args ...interface{}) {
-	if entry.Logger.Level >= PanicLevel {
+	if entry.Logger.IsLevelEnabled(PanicLevel) {
 		entry.Panic(entry.sprintlnn(args...))
 	}
 }
diff --git a/vendor/github.com/Sirupsen/logrus/exported.go b/vendor/github.com/Sirupsen/logrus/exported.go
index 9a0120a..7342613 100644
--- a/vendor/github.com/Sirupsen/logrus/exported.go
+++ b/vendor/github.com/Sirupsen/logrus/exported.go
@@ -2,6 +2,7 @@
 
 import (
 	"io"
+	"time"
 )
 
 var (
@@ -15,37 +16,38 @@
 
 // SetOutput sets the standard logger output.
 func SetOutput(out io.Writer) {
-	std.mu.Lock()
-	defer std.mu.Unlock()
-	std.Out = out
+	std.SetOutput(out)
 }
 
 // SetFormatter sets the standard logger formatter.
 func SetFormatter(formatter Formatter) {
-	std.mu.Lock()
-	defer std.mu.Unlock()
-	std.Formatter = formatter
+	std.SetFormatter(formatter)
+}
+
+// SetReportCaller sets whether the standard logger will include the calling
+// method as a field.
+func SetReportCaller(include bool) {
+	std.SetReportCaller(include)
 }
 
 // SetLevel sets the standard logger level.
 func SetLevel(level Level) {
-	std.mu.Lock()
-	defer std.mu.Unlock()
-	std.Level = level
+	std.SetLevel(level)
 }
 
 // GetLevel returns the standard logger level.
 func GetLevel() Level {
-	std.mu.Lock()
-	defer std.mu.Unlock()
-	return std.Level
+	return std.GetLevel()
+}
+
+// IsLevelEnabled checks if the log level of the standard logger is greater than the level param
+func IsLevelEnabled(level Level) bool {
+	return std.IsLevelEnabled(level)
 }
 
 // AddHook adds a hook to the standard logger hooks.
 func AddHook(hook Hook) {
-	std.mu.Lock()
-	defer std.mu.Unlock()
-	std.Hooks.Add(hook)
+	std.AddHook(hook)
 }
 
 // WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
@@ -72,6 +74,20 @@
 	return std.WithFields(fields)
 }
 
+// WithTime creats an entry from the standard logger and overrides the time of
+// logs generated with it.
+//
+// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
+// or Panic on the Entry it returns.
+func WithTime(t time.Time) *Entry {
+	return std.WithTime(t)
+}
+
+// Trace logs a message at level Trace on the standard logger.
+func Trace(args ...interface{}) {
+	std.Trace(args...)
+}
+
 // Debug logs a message at level Debug on the standard logger.
 func Debug(args ...interface{}) {
 	std.Debug(args...)
@@ -107,11 +123,16 @@
 	std.Panic(args...)
 }
 
-// Fatal logs a message at level Fatal on the standard logger.
+// Fatal logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
 func Fatal(args ...interface{}) {
 	std.Fatal(args...)
 }
 
+// Tracef logs a message at level Trace on the standard logger.
+func Tracef(format string, args ...interface{}) {
+	std.Tracef(format, args...)
+}
+
 // Debugf logs a message at level Debug on the standard logger.
 func Debugf(format string, args ...interface{}) {
 	std.Debugf(format, args...)
@@ -147,11 +168,16 @@
 	std.Panicf(format, args...)
 }
 
-// Fatalf logs a message at level Fatal on the standard logger.
+// Fatalf logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
 func Fatalf(format string, args ...interface{}) {
 	std.Fatalf(format, args...)
 }
 
+// Traceln logs a message at level Trace on the standard logger.
+func Traceln(args ...interface{}) {
+	std.Traceln(args...)
+}
+
 // Debugln logs a message at level Debug on the standard logger.
 func Debugln(args ...interface{}) {
 	std.Debugln(args...)
@@ -187,7 +213,7 @@
 	std.Panicln(args...)
 }
 
-// Fatalln logs a message at level Fatal on the standard logger.
+// Fatalln logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
 func Fatalln(args ...interface{}) {
 	std.Fatalln(args...)
 }
diff --git a/vendor/github.com/Sirupsen/logrus/formatter.go b/vendor/github.com/Sirupsen/logrus/formatter.go
index b5fbe93..4088837 100644
--- a/vendor/github.com/Sirupsen/logrus/formatter.go
+++ b/vendor/github.com/Sirupsen/logrus/formatter.go
@@ -2,7 +2,16 @@
 
 import "time"
 
-const DefaultTimestampFormat = time.RFC3339
+// Default key names for the default fields
+const (
+	defaultTimestampFormat = time.RFC3339
+	FieldKeyMsg            = "msg"
+	FieldKeyLevel          = "level"
+	FieldKeyTime           = "time"
+	FieldKeyLogrusError    = "logrus_error"
+	FieldKeyFunc           = "func"
+	FieldKeyFile           = "file"
+)
 
 // The Formatter interface is used to implement a custom Formatter. It takes an
 // `Entry`. It exposes all the fields, including the default ones:
@@ -18,7 +27,7 @@
 	Format(*Entry) ([]byte, error)
 }
 
-// This is to not silently overwrite `time`, `msg` and `level` fields when
+// This is to not silently overwrite `time`, `msg`, `func` and `level` fields when
 // dumping it. If this code wasn't there doing:
 //
 //  logrus.WithField("level", 1).Info("hello")
@@ -30,16 +39,40 @@
 //
 // It's not exported because it's still using Data in an opinionated way. It's to
 // avoid code duplication between the two default formatters.
-func prefixFieldClashes(data Fields) {
-	if t, ok := data["time"]; ok {
-		data["fields.time"] = t
+func prefixFieldClashes(data Fields, fieldMap FieldMap, reportCaller bool) {
+	timeKey := fieldMap.resolve(FieldKeyTime)
+	if t, ok := data[timeKey]; ok {
+		data["fields."+timeKey] = t
+		delete(data, timeKey)
 	}
 
-	if m, ok := data["msg"]; ok {
-		data["fields.msg"] = m
+	msgKey := fieldMap.resolve(FieldKeyMsg)
+	if m, ok := data[msgKey]; ok {
+		data["fields."+msgKey] = m
+		delete(data, msgKey)
 	}
 
-	if l, ok := data["level"]; ok {
-		data["fields.level"] = l
+	levelKey := fieldMap.resolve(FieldKeyLevel)
+	if l, ok := data[levelKey]; ok {
+		data["fields."+levelKey] = l
+		delete(data, levelKey)
+	}
+
+	logrusErrKey := fieldMap.resolve(FieldKeyLogrusError)
+	if l, ok := data[logrusErrKey]; ok {
+		data["fields."+logrusErrKey] = l
+		delete(data, logrusErrKey)
+	}
+
+	// If reportCaller is not set, 'func' will not conflict.
+	if reportCaller {
+		funcKey := fieldMap.resolve(FieldKeyFunc)
+		if l, ok := data[funcKey]; ok {
+			data["fields."+funcKey] = l
+		}
+		fileKey := fieldMap.resolve(FieldKeyFile)
+		if l, ok := data[fileKey]; ok {
+			data["fields."+fileKey] = l
+		}
 	}
 }
diff --git a/vendor/github.com/Sirupsen/logrus/go.mod b/vendor/github.com/Sirupsen/logrus/go.mod
new file mode 100644
index 0000000..94574cc
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/go.mod
@@ -0,0 +1,11 @@
+module github.com/sirupsen/logrus
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/konsorten/go-windows-terminal-sequences v1.0.1
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/objx v0.1.1 // indirect
+	github.com/stretchr/testify v1.2.2
+	golang.org/x/crypto v0.0.0-20180904163835-0709b304e793
+	golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33
+)
diff --git a/vendor/github.com/Sirupsen/logrus/go.sum b/vendor/github.com/Sirupsen/logrus/go.sum
new file mode 100644
index 0000000..133d34a
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/go.sum
@@ -0,0 +1,15 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/konsorten/go-windows-terminal-sequences v0.0.0-20180402223658-b729f2633dfe h1:CHRGQ8V7OlCYtwaKPJi3iA7J+YdNKdo8j7nG5IgDhjs=
+github.com/konsorten/go-windows-terminal-sequences v0.0.0-20180402223658-b729f2633dfe/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793 h1:u+LnwYTOOW7Ukr/fppxEb1Nwz0AtPflrblfvUudpo+I=
+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33 h1:I6FyU15t786LL7oL/hn43zqTuEGr4PN7F4XJ1p4E3Y8=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
diff --git a/vendor/github.com/Sirupsen/logrus/json_formatter.go b/vendor/github.com/Sirupsen/logrus/json_formatter.go
index 266554e..2605753 100644
--- a/vendor/github.com/Sirupsen/logrus/json_formatter.go
+++ b/vendor/github.com/Sirupsen/logrus/json_formatter.go
@@ -1,18 +1,15 @@
 package logrus
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 )
 
 type fieldKey string
-type FieldMap map[fieldKey]string
 
-const (
-	FieldKeyMsg   = "msg"
-	FieldKeyLevel = "level"
-	FieldKeyTime  = "time"
-)
+// FieldMap allows customization of the key names for default fields.
+type FieldMap map[fieldKey]string
 
 func (f FieldMap) resolve(key fieldKey) string {
 	if k, ok := f[key]; ok {
@@ -22,6 +19,7 @@
 	return string(key)
 }
 
+// JSONFormatter formats logs into parsable json
 type JSONFormatter struct {
 	// TimestampFormat sets the format used for marshaling timestamps.
 	TimestampFormat string
@@ -29,46 +27,79 @@
 	// DisableTimestamp allows disabling automatic timestamps in output
 	DisableTimestamp bool
 
-	// FieldMap allows users to customize the names of keys for various fields.
+	// DataKey allows users to put all the log entry parameters into a nested dictionary at a given key.
+	DataKey string
+
+	// FieldMap allows users to customize the names of keys for default fields.
 	// As an example:
 	// formatter := &JSONFormatter{
 	//   	FieldMap: FieldMap{
-	// 		 FieldKeyTime: "@timestamp",
+	// 		 FieldKeyTime:  "@timestamp",
 	// 		 FieldKeyLevel: "@level",
-	// 		 FieldKeyLevel: "@message",
+	// 		 FieldKeyMsg:   "@message",
+	// 		 FieldKeyFunc:  "@caller",
 	//    },
 	// }
 	FieldMap FieldMap
+
+	// PrettyPrint will indent all json logs
+	PrettyPrint bool
 }
 
+// Format renders a single log entry
 func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
-	data := make(Fields, len(entry.Data)+3)
+	data := make(Fields, len(entry.Data)+4)
 	for k, v := range entry.Data {
 		switch v := v.(type) {
 		case error:
 			// Otherwise errors are ignored by `encoding/json`
-			// https://github.com/Sirupsen/logrus/issues/137
+			// https://github.com/sirupsen/logrus/issues/137
 			data[k] = v.Error()
 		default:
 			data[k] = v
 		}
 	}
-	prefixFieldClashes(data)
+
+	if f.DataKey != "" {
+		newData := make(Fields, 4)
+		newData[f.DataKey] = data
+		data = newData
+	}
+
+	prefixFieldClashes(data, f.FieldMap, entry.HasCaller())
 
 	timestampFormat := f.TimestampFormat
 	if timestampFormat == "" {
-		timestampFormat = DefaultTimestampFormat
+		timestampFormat = defaultTimestampFormat
 	}
 
+	if entry.err != "" {
+		data[f.FieldMap.resolve(FieldKeyLogrusError)] = entry.err
+	}
 	if !f.DisableTimestamp {
 		data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
 	}
 	data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
 	data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
+	if entry.HasCaller() {
+		data[f.FieldMap.resolve(FieldKeyFunc)] = entry.Caller.Function
+		data[f.FieldMap.resolve(FieldKeyFile)] = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+	}
 
-	serialized, err := json.Marshal(data)
-	if err != nil {
+	var b *bytes.Buffer
+	if entry.Buffer != nil {
+		b = entry.Buffer
+	} else {
+		b = &bytes.Buffer{}
+	}
+
+	encoder := json.NewEncoder(b)
+	if f.PrettyPrint {
+		encoder.SetIndent("", "  ")
+	}
+	if err := encoder.Encode(data); err != nil {
 		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
 	}
-	return append(serialized, '\n'), nil
+
+	return b.Bytes(), nil
 }
diff --git a/vendor/github.com/Sirupsen/logrus/logger.go b/vendor/github.com/Sirupsen/logrus/logger.go
index b769f3d..5ceca0e 100644
--- a/vendor/github.com/Sirupsen/logrus/logger.go
+++ b/vendor/github.com/Sirupsen/logrus/logger.go
@@ -4,12 +4,14 @@
 	"io"
 	"os"
 	"sync"
+	"sync/atomic"
+	"time"
 )
 
 type Logger struct {
 	// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
 	// file, or leave it default which is `os.Stderr`. You can also set this to
-	// something more adventorous, such as logging to Kafka.
+	// something more adventurous, such as logging to Kafka.
 	Out io.Writer
 	// Hooks for the logger instance. These allow firing events based on logging
 	// levels and log entries. For example, to send errors to an error tracking
@@ -22,16 +24,24 @@
 	// own that implements the `Formatter` interface, see the `README` or included
 	// formatters for examples.
 	Formatter Formatter
+
+	// Flag for whether to log caller info (off by default)
+	ReportCaller bool
+
 	// The logging level the logger should log at. This is typically (and defaults
 	// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
-	// logged. `logrus.Debug` is useful in
+	// logged.
 	Level Level
 	// Used to sync writing to the log. Locking is enabled by Default
 	mu MutexWrap
 	// Reusable empty entry
 	entryPool sync.Pool
+	// Function to exit the application, defaults to `os.Exit()`
+	ExitFunc exitFunc
 }
 
+type exitFunc func(int)
+
 type MutexWrap struct {
 	lock     sync.Mutex
 	disabled bool
@@ -67,10 +77,12 @@
 // It's recommended to make this a global instance called `log`.
 func New() *Logger {
 	return &Logger{
-		Out:       os.Stderr,
-		Formatter: new(TextFormatter),
-		Hooks:     make(LevelHooks),
-		Level:     InfoLevel,
+		Out:          os.Stderr,
+		Formatter:    new(TextFormatter),
+		Hooks:        make(LevelHooks),
+		Level:        InfoLevel,
+		ExitFunc:     os.Exit,
+		ReportCaller: false,
 	}
 }
 
@@ -83,11 +95,12 @@
 }
 
 func (logger *Logger) releaseEntry(entry *Entry) {
+	entry.Data = map[string]interface{}{}
 	logger.entryPool.Put(entry)
 }
 
 // Adds a field to the log entry, note that it doesn't log until you call
-// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
+// Debug, Print, Info, Warn, Error, Fatal or Panic. It only creates a log entry.
 // If you want multiple fields, use `WithFields`.
 func (logger *Logger) WithField(key string, value interface{}) *Entry {
 	entry := logger.newEntry()
@@ -111,8 +124,23 @@
 	return entry.WithError(err)
 }
 
+// Overrides the time of the log entry.
+func (logger *Logger) WithTime(t time.Time) *Entry {
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithTime(t)
+}
+
+func (logger *Logger) Tracef(format string, args ...interface{}) {
+	if logger.IsLevelEnabled(TraceLevel) {
+		entry := logger.newEntry()
+		entry.Tracef(format, args...)
+		logger.releaseEntry(entry)
+	}
+}
+
 func (logger *Logger) Debugf(format string, args ...interface{}) {
-	if logger.Level >= DebugLevel {
+	if logger.IsLevelEnabled(DebugLevel) {
 		entry := logger.newEntry()
 		entry.Debugf(format, args...)
 		logger.releaseEntry(entry)
@@ -120,7 +148,7 @@
 }
 
 func (logger *Logger) Infof(format string, args ...interface{}) {
-	if logger.Level >= InfoLevel {
+	if logger.IsLevelEnabled(InfoLevel) {
 		entry := logger.newEntry()
 		entry.Infof(format, args...)
 		logger.releaseEntry(entry)
@@ -134,7 +162,7 @@
 }
 
 func (logger *Logger) Warnf(format string, args ...interface{}) {
-	if logger.Level >= WarnLevel {
+	if logger.IsLevelEnabled(WarnLevel) {
 		entry := logger.newEntry()
 		entry.Warnf(format, args...)
 		logger.releaseEntry(entry)
@@ -142,7 +170,7 @@
 }
 
 func (logger *Logger) Warningf(format string, args ...interface{}) {
-	if logger.Level >= WarnLevel {
+	if logger.IsLevelEnabled(WarnLevel) {
 		entry := logger.newEntry()
 		entry.Warnf(format, args...)
 		logger.releaseEntry(entry)
@@ -150,7 +178,7 @@
 }
 
 func (logger *Logger) Errorf(format string, args ...interface{}) {
-	if logger.Level >= ErrorLevel {
+	if logger.IsLevelEnabled(ErrorLevel) {
 		entry := logger.newEntry()
 		entry.Errorf(format, args...)
 		logger.releaseEntry(entry)
@@ -158,24 +186,32 @@
 }
 
 func (logger *Logger) Fatalf(format string, args ...interface{}) {
-	if logger.Level >= FatalLevel {
+	if logger.IsLevelEnabled(FatalLevel) {
 		entry := logger.newEntry()
 		entry.Fatalf(format, args...)
 		logger.releaseEntry(entry)
 	}
-	Exit(1)
+	logger.Exit(1)
 }
 
 func (logger *Logger) Panicf(format string, args ...interface{}) {
-	if logger.Level >= PanicLevel {
+	if logger.IsLevelEnabled(PanicLevel) {
 		entry := logger.newEntry()
 		entry.Panicf(format, args...)
 		logger.releaseEntry(entry)
 	}
 }
 
+func (logger *Logger) Trace(args ...interface{}) {
+	if logger.IsLevelEnabled(TraceLevel) {
+		entry := logger.newEntry()
+		entry.Trace(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
 func (logger *Logger) Debug(args ...interface{}) {
-	if logger.Level >= DebugLevel {
+	if logger.IsLevelEnabled(DebugLevel) {
 		entry := logger.newEntry()
 		entry.Debug(args...)
 		logger.releaseEntry(entry)
@@ -183,7 +219,7 @@
 }
 
 func (logger *Logger) Info(args ...interface{}) {
-	if logger.Level >= InfoLevel {
+	if logger.IsLevelEnabled(InfoLevel) {
 		entry := logger.newEntry()
 		entry.Info(args...)
 		logger.releaseEntry(entry)
@@ -197,7 +233,7 @@
 }
 
 func (logger *Logger) Warn(args ...interface{}) {
-	if logger.Level >= WarnLevel {
+	if logger.IsLevelEnabled(WarnLevel) {
 		entry := logger.newEntry()
 		entry.Warn(args...)
 		logger.releaseEntry(entry)
@@ -205,7 +241,7 @@
 }
 
 func (logger *Logger) Warning(args ...interface{}) {
-	if logger.Level >= WarnLevel {
+	if logger.IsLevelEnabled(WarnLevel) {
 		entry := logger.newEntry()
 		entry.Warn(args...)
 		logger.releaseEntry(entry)
@@ -213,7 +249,7 @@
 }
 
 func (logger *Logger) Error(args ...interface{}) {
-	if logger.Level >= ErrorLevel {
+	if logger.IsLevelEnabled(ErrorLevel) {
 		entry := logger.newEntry()
 		entry.Error(args...)
 		logger.releaseEntry(entry)
@@ -221,24 +257,32 @@
 }
 
 func (logger *Logger) Fatal(args ...interface{}) {
-	if logger.Level >= FatalLevel {
+	if logger.IsLevelEnabled(FatalLevel) {
 		entry := logger.newEntry()
 		entry.Fatal(args...)
 		logger.releaseEntry(entry)
 	}
-	Exit(1)
+	logger.Exit(1)
 }
 
 func (logger *Logger) Panic(args ...interface{}) {
-	if logger.Level >= PanicLevel {
+	if logger.IsLevelEnabled(PanicLevel) {
 		entry := logger.newEntry()
 		entry.Panic(args...)
 		logger.releaseEntry(entry)
 	}
 }
 
+func (logger *Logger) Traceln(args ...interface{}) {
+	if logger.IsLevelEnabled(TraceLevel) {
+		entry := logger.newEntry()
+		entry.Traceln(args...)
+		logger.releaseEntry(entry)
+	}
+}
+
 func (logger *Logger) Debugln(args ...interface{}) {
-	if logger.Level >= DebugLevel {
+	if logger.IsLevelEnabled(DebugLevel) {
 		entry := logger.newEntry()
 		entry.Debugln(args...)
 		logger.releaseEntry(entry)
@@ -246,7 +290,7 @@
 }
 
 func (logger *Logger) Infoln(args ...interface{}) {
-	if logger.Level >= InfoLevel {
+	if logger.IsLevelEnabled(InfoLevel) {
 		entry := logger.newEntry()
 		entry.Infoln(args...)
 		logger.releaseEntry(entry)
@@ -260,7 +304,7 @@
 }
 
 func (logger *Logger) Warnln(args ...interface{}) {
-	if logger.Level >= WarnLevel {
+	if logger.IsLevelEnabled(WarnLevel) {
 		entry := logger.newEntry()
 		entry.Warnln(args...)
 		logger.releaseEntry(entry)
@@ -268,7 +312,7 @@
 }
 
 func (logger *Logger) Warningln(args ...interface{}) {
-	if logger.Level >= WarnLevel {
+	if logger.IsLevelEnabled(WarnLevel) {
 		entry := logger.newEntry()
 		entry.Warnln(args...)
 		logger.releaseEntry(entry)
@@ -276,7 +320,7 @@
 }
 
 func (logger *Logger) Errorln(args ...interface{}) {
-	if logger.Level >= ErrorLevel {
+	if logger.IsLevelEnabled(ErrorLevel) {
 		entry := logger.newEntry()
 		entry.Errorln(args...)
 		logger.releaseEntry(entry)
@@ -284,25 +328,88 @@
 }
 
 func (logger *Logger) Fatalln(args ...interface{}) {
-	if logger.Level >= FatalLevel {
+	if logger.IsLevelEnabled(FatalLevel) {
 		entry := logger.newEntry()
 		entry.Fatalln(args...)
 		logger.releaseEntry(entry)
 	}
-	Exit(1)
+	logger.Exit(1)
 }
 
 func (logger *Logger) Panicln(args ...interface{}) {
-	if logger.Level >= PanicLevel {
+	if logger.IsLevelEnabled(PanicLevel) {
 		entry := logger.newEntry()
 		entry.Panicln(args...)
 		logger.releaseEntry(entry)
 	}
 }
 
+func (logger *Logger) Exit(code int) {
+	runHandlers()
+	if logger.ExitFunc == nil {
+		logger.ExitFunc = os.Exit
+	}
+	logger.ExitFunc(code)
+}
+
 //When file is opened with appending mode, it's safe to
 //write concurrently to a file (within 4k message on Linux).
 //In these cases user can choose to disable the lock.
 func (logger *Logger) SetNoLock() {
 	logger.mu.Disable()
 }
+
+func (logger *Logger) level() Level {
+	return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
+}
+
+// SetLevel sets the logger level.
+func (logger *Logger) SetLevel(level Level) {
+	atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
+}
+
+// GetLevel returns the logger level.
+func (logger *Logger) GetLevel() Level {
+	return logger.level()
+}
+
+// AddHook adds a hook to the logger hooks.
+func (logger *Logger) AddHook(hook Hook) {
+	logger.mu.Lock()
+	defer logger.mu.Unlock()
+	logger.Hooks.Add(hook)
+}
+
+// IsLevelEnabled checks if the log level of the logger is greater than the level param
+func (logger *Logger) IsLevelEnabled(level Level) bool {
+	return logger.level() >= level
+}
+
+// SetFormatter sets the logger formatter.
+func (logger *Logger) SetFormatter(formatter Formatter) {
+	logger.mu.Lock()
+	defer logger.mu.Unlock()
+	logger.Formatter = formatter
+}
+
+// SetOutput sets the logger output.
+func (logger *Logger) SetOutput(output io.Writer) {
+	logger.mu.Lock()
+	defer logger.mu.Unlock()
+	logger.Out = output
+}
+
+func (logger *Logger) SetReportCaller(reportCaller bool) {
+	logger.mu.Lock()
+	defer logger.mu.Unlock()
+	logger.ReportCaller = reportCaller
+}
+
+// ReplaceHooks replaces the logger hooks and returns the old ones
+func (logger *Logger) ReplaceHooks(hooks LevelHooks) LevelHooks {
+	logger.mu.Lock()
+	oldHooks := logger.Hooks
+	logger.Hooks = hooks
+	logger.mu.Unlock()
+	return oldHooks
+}
diff --git a/vendor/github.com/Sirupsen/logrus/logrus.go b/vendor/github.com/Sirupsen/logrus/logrus.go
index e596691..4ef4518 100644
--- a/vendor/github.com/Sirupsen/logrus/logrus.go
+++ b/vendor/github.com/Sirupsen/logrus/logrus.go
@@ -10,11 +10,13 @@
 type Fields map[string]interface{}
 
 // Level type
-type Level uint8
+type Level uint32
 
 // Convert the Level to a string. E.g. PanicLevel becomes "panic".
 func (level Level) String() string {
 	switch level {
+	case TraceLevel:
+		return "trace"
 	case DebugLevel:
 		return "debug"
 	case InfoLevel:
@@ -47,12 +49,26 @@
 		return InfoLevel, nil
 	case "debug":
 		return DebugLevel, nil
+	case "trace":
+		return TraceLevel, nil
 	}
 
 	var l Level
 	return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
 }
 
+// UnmarshalText implements encoding.TextUnmarshaler.
+func (level *Level) UnmarshalText(text []byte) error {
+	l, err := ParseLevel(string(text))
+	if err != nil {
+		return err
+	}
+
+	*level = Level(l)
+
+	return nil
+}
+
 // A constant exposing all logging levels
 var AllLevels = []Level{
 	PanicLevel,
@@ -61,6 +77,7 @@
 	WarnLevel,
 	InfoLevel,
 	DebugLevel,
+	TraceLevel,
 }
 
 // These are the different logging levels. You can set the logging level to log
@@ -69,7 +86,7 @@
 	// PanicLevel level, highest level of severity. Logs and then calls panic with the
 	// message passed to Debug, Info, ...
 	PanicLevel Level = iota
-	// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
+	// FatalLevel level. Logs and then calls `logger.Exit(1)`. It will exit even if the
 	// logging level is set to Panic.
 	FatalLevel
 	// ErrorLevel level. Logs. Used for errors that should definitely be noted.
@@ -82,6 +99,8 @@
 	InfoLevel
 	// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
 	DebugLevel
+	// TraceLevel level. Designates finer-grained informational events than the Debug.
+	TraceLevel
 )
 
 // Won't compile if StdLogger can't be realized by a log.Logger
@@ -140,4 +159,20 @@
 	Errorln(args ...interface{})
 	Fatalln(args ...interface{})
 	Panicln(args ...interface{})
+
+	// IsDebugEnabled() bool
+	// IsInfoEnabled() bool
+	// IsWarnEnabled() bool
+	// IsErrorEnabled() bool
+	// IsFatalEnabled() bool
+	// IsPanicEnabled() bool
+}
+
+// Ext1FieldLogger (the first extension to FieldLogger) is superfluous, it is
+// here for consistancy. Do not use. Use Logger or Entry instead.
+type Ext1FieldLogger interface {
+	FieldLogger
+	Tracef(format string, args ...interface{})
+	Trace(args ...interface{})
+	Traceln(args ...interface{})
 }
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_appengine.go b/vendor/github.com/Sirupsen/logrus/terminal_appengine.go
deleted file mode 100644
index 1960169..0000000
--- a/vendor/github.com/Sirupsen/logrus/terminal_appengine.go
+++ /dev/null
@@ -1,8 +0,0 @@
-// +build appengine
-
-package logrus
-
-// IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	return true
-}
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_bsd.go b/vendor/github.com/Sirupsen/logrus/terminal_bsd.go
deleted file mode 100644
index 5f6be4d..0000000
--- a/vendor/github.com/Sirupsen/logrus/terminal_bsd.go
+++ /dev/null
@@ -1,10 +0,0 @@
-// +build darwin freebsd openbsd netbsd dragonfly
-// +build !appengine
-
-package logrus
-
-import "syscall"
-
-const ioctlReadTermios = syscall.TIOCGETA
-
-type Termios syscall.Termios
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_check_appengine.go b/vendor/github.com/Sirupsen/logrus/terminal_check_appengine.go
new file mode 100644
index 0000000..2403de9
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/terminal_check_appengine.go
@@ -0,0 +1,11 @@
+// +build appengine
+
+package logrus
+
+import (
+	"io"
+)
+
+func checkIfTerminal(w io.Writer) bool {
+	return true
+}
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_check_js.go b/vendor/github.com/Sirupsen/logrus/terminal_check_js.go
new file mode 100644
index 0000000..0c20975
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/terminal_check_js.go
@@ -0,0 +1,11 @@
+// +build js
+
+package logrus
+
+import (
+	"io"
+)
+
+func checkIfTerminal(w io.Writer) bool {
+	return false
+}
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_check_notappengine.go b/vendor/github.com/Sirupsen/logrus/terminal_check_notappengine.go
new file mode 100644
index 0000000..cf309d6
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/terminal_check_notappengine.go
@@ -0,0 +1,19 @@
+// +build !appengine,!js,!windows
+
+package logrus
+
+import (
+	"io"
+	"os"
+
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+func checkIfTerminal(w io.Writer) bool {
+	switch v := w.(type) {
+	case *os.File:
+		return terminal.IsTerminal(int(v.Fd()))
+	default:
+		return false
+	}
+}
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_check_windows.go b/vendor/github.com/Sirupsen/logrus/terminal_check_windows.go
new file mode 100644
index 0000000..3b9d286
--- /dev/null
+++ b/vendor/github.com/Sirupsen/logrus/terminal_check_windows.go
@@ -0,0 +1,20 @@
+// +build !appengine,!js,windows
+
+package logrus
+
+import (
+	"io"
+	"os"
+	"syscall"
+)
+
+func checkIfTerminal(w io.Writer) bool {
+	switch v := w.(type) {
+	case *os.File:
+		var mode uint32
+		err := syscall.GetConsoleMode(syscall.Handle(v.Fd()), &mode)
+		return err == nil
+	default:
+		return false
+	}
+}
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_linux.go b/vendor/github.com/Sirupsen/logrus/terminal_linux.go
deleted file mode 100644
index 308160c..0000000
--- a/vendor/github.com/Sirupsen/logrus/terminal_linux.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// Based on ssh/terminal:
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !appengine
-
-package logrus
-
-import "syscall"
-
-const ioctlReadTermios = syscall.TCGETS
-
-type Termios syscall.Termios
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go b/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go
index 329038f..3dbd237 100644
--- a/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go
+++ b/vendor/github.com/Sirupsen/logrus/terminal_notwindows.go
@@ -1,22 +1,8 @@
-// Based on ssh/terminal:
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build linux darwin freebsd openbsd netbsd dragonfly
-// +build !appengine
+// +build !windows
 
 package logrus
 
-import (
-	"syscall"
-	"unsafe"
-)
+import "io"
 
-// IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	fd := syscall.Stderr
-	var termios Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
+func initTerminal(w io.Writer) {
 }
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_solaris.go b/vendor/github.com/Sirupsen/logrus/terminal_solaris.go
deleted file mode 100644
index a3c6f6e..0000000
--- a/vendor/github.com/Sirupsen/logrus/terminal_solaris.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// +build solaris,!appengine
-
-package logrus
-
-import (
-	"os"
-
-	"golang.org/x/sys/unix"
-)
-
-// IsTerminal returns true if the given file descriptor is a terminal.
-func IsTerminal() bool {
-	_, err := unix.IoctlGetTermios(int(os.Stdout.Fd()), unix.TCGETA)
-	return err == nil
-}
diff --git a/vendor/github.com/Sirupsen/logrus/terminal_windows.go b/vendor/github.com/Sirupsen/logrus/terminal_windows.go
index 3727e8a..b4ef528 100644
--- a/vendor/github.com/Sirupsen/logrus/terminal_windows.go
+++ b/vendor/github.com/Sirupsen/logrus/terminal_windows.go
@@ -1,27 +1,18 @@
-// Based on ssh/terminal:
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows,!appengine
+// +build !appengine,!js,windows
 
 package logrus
 
 import (
+	"io"
+	"os"
 	"syscall"
-	"unsafe"
+
+	sequences "github.com/konsorten/go-windows-terminal-sequences"
 )
 
-var kernel32 = syscall.NewLazyDLL("kernel32.dll")
-
-var (
-	procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
-)
-
-// IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	fd := syscall.Stderr
-	var st uint32
-	r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
-	return r != 0 && e == 0
+func initTerminal(w io.Writer) {
+	switch v := w.(type) {
+	case *os.File:
+		sequences.EnableVirtualTerminalProcessing(syscall.Handle(v.Fd()), true)
+	}
 }
diff --git a/vendor/github.com/Sirupsen/logrus/text_formatter.go b/vendor/github.com/Sirupsen/logrus/text_formatter.go
index 076de5d..49ec92f 100644
--- a/vendor/github.com/Sirupsen/logrus/text_formatter.go
+++ b/vendor/github.com/Sirupsen/logrus/text_formatter.go
@@ -3,9 +3,10 @@
 import (
 	"bytes"
 	"fmt"
-	"runtime"
+	"os"
 	"sort"
 	"strings"
+	"sync"
 	"time"
 )
 
@@ -14,20 +15,20 @@
 	red     = 31
 	green   = 32
 	yellow  = 33
-	blue    = 34
+	blue    = 36
 	gray    = 37
 )
 
 var (
 	baseTimestamp time.Time
-	isTerminal    bool
+	emptyFieldMap FieldMap
 )
 
 func init() {
 	baseTimestamp = time.Now()
-	isTerminal = IsTerminal()
 }
 
+// TextFormatter formats logs into text
 type TextFormatter struct {
 	// Set to true to bypass checking for a TTY before outputting colors.
 	ForceColors bool
@@ -35,6 +36,9 @@
 	// Force disabling colors.
 	DisableColors bool
 
+	// Override coloring based on CLICOLOR and CLICOLOR_FORCE. - https://bixense.com/clicolors/
+	EnvironmentOverrideColors bool
+
 	// Disable timestamp logging. useful when output is redirected to logging
 	// system that already adds timestamps.
 	DisableTimestamp bool
@@ -50,45 +54,133 @@
 	// that log extremely frequently and don't use the JSON formatter this may not
 	// be desired.
 	DisableSorting bool
+
+	// The keys sorting function, when uninitialized it uses sort.Strings.
+	SortingFunc func([]string)
+
+	// Disables the truncation of the level text to 4 characters.
+	DisableLevelTruncation bool
+
+	// QuoteEmptyFields will wrap empty fields in quotes if true
+	QuoteEmptyFields bool
+
+	// Whether the logger's out is to a terminal
+	isTerminal bool
+
+	// FieldMap allows users to customize the names of keys for default fields.
+	// As an example:
+	// formatter := &TextFormatter{
+	//     FieldMap: FieldMap{
+	//         FieldKeyTime:  "@timestamp",
+	//         FieldKeyLevel: "@level",
+	//         FieldKeyMsg:   "@message"}}
+	FieldMap FieldMap
+
+	terminalInitOnce sync.Once
 }
 
+func (f *TextFormatter) init(entry *Entry) {
+	if entry.Logger != nil {
+		f.isTerminal = checkIfTerminal(entry.Logger.Out)
+
+		if f.isTerminal {
+			initTerminal(entry.Logger.Out)
+		}
+	}
+}
+
+func (f *TextFormatter) isColored() bool {
+	isColored := f.ForceColors || f.isTerminal
+
+	if f.EnvironmentOverrideColors {
+		if force, ok := os.LookupEnv("CLICOLOR_FORCE"); ok && force != "0" {
+			isColored = true
+		} else if ok && force == "0" {
+			isColored = false
+		} else if os.Getenv("CLICOLOR") == "0" {
+			isColored = false
+		}
+	}
+
+	return isColored && !f.DisableColors
+}
+
+// Format renders a single log entry
 func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
-	var b *bytes.Buffer
+	prefixFieldClashes(entry.Data, f.FieldMap, entry.HasCaller())
+
 	keys := make([]string, 0, len(entry.Data))
 	for k := range entry.Data {
 		keys = append(keys, k)
 	}
 
-	if !f.DisableSorting {
-		sort.Strings(keys)
+	fixedKeys := make([]string, 0, 4+len(entry.Data))
+	if !f.DisableTimestamp {
+		fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyTime))
 	}
+	fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLevel))
+	if entry.Message != "" {
+		fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyMsg))
+	}
+	if entry.err != "" {
+		fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLogrusError))
+	}
+	if entry.HasCaller() {
+		fixedKeys = append(fixedKeys,
+			f.FieldMap.resolve(FieldKeyFunc), f.FieldMap.resolve(FieldKeyFile))
+	}
+
+	if !f.DisableSorting {
+		if f.SortingFunc == nil {
+			sort.Strings(keys)
+			fixedKeys = append(fixedKeys, keys...)
+		} else {
+			if !f.isColored() {
+				fixedKeys = append(fixedKeys, keys...)
+				f.SortingFunc(fixedKeys)
+			} else {
+				f.SortingFunc(keys)
+			}
+		}
+	} else {
+		fixedKeys = append(fixedKeys, keys...)
+	}
+
+	var b *bytes.Buffer
 	if entry.Buffer != nil {
 		b = entry.Buffer
 	} else {
 		b = &bytes.Buffer{}
 	}
 
-	prefixFieldClashes(entry.Data)
-
-	isColorTerminal := isTerminal && (runtime.GOOS != "windows")
-	isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
+	f.terminalInitOnce.Do(func() { f.init(entry) })
 
 	timestampFormat := f.TimestampFormat
 	if timestampFormat == "" {
-		timestampFormat = DefaultTimestampFormat
+		timestampFormat = defaultTimestampFormat
 	}
-	if isColored {
+	if f.isColored() {
 		f.printColored(b, entry, keys, timestampFormat)
 	} else {
-		if !f.DisableTimestamp {
-			f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat))
-		}
-		f.appendKeyValue(b, "level", entry.Level.String())
-		if entry.Message != "" {
-			f.appendKeyValue(b, "msg", entry.Message)
-		}
-		for _, key := range keys {
-			f.appendKeyValue(b, key, entry.Data[key])
+		for _, key := range fixedKeys {
+			var value interface{}
+			switch {
+			case key == f.FieldMap.resolve(FieldKeyTime):
+				value = entry.Time.Format(timestampFormat)
+			case key == f.FieldMap.resolve(FieldKeyLevel):
+				value = entry.Level.String()
+			case key == f.FieldMap.resolve(FieldKeyMsg):
+				value = entry.Message
+			case key == f.FieldMap.resolve(FieldKeyLogrusError):
+				value = entry.err
+			case key == f.FieldMap.resolve(FieldKeyFunc) && entry.HasCaller():
+				value = entry.Caller.Function
+			case key == f.FieldMap.resolve(FieldKeyFile) && entry.HasCaller():
+				value = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+			default:
+				value = entry.Data[key]
+			}
+			f.appendKeyValue(b, key, value)
 		}
 	}
 
@@ -99,7 +191,7 @@
 func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) {
 	var levelColor int
 	switch entry.Level {
-	case DebugLevel:
+	case DebugLevel, TraceLevel:
 		levelColor = gray
 	case WarnLevel:
 		levelColor = yellow
@@ -109,14 +201,28 @@
 		levelColor = blue
 	}
 
-	levelText := strings.ToUpper(entry.Level.String())[0:4]
+	levelText := strings.ToUpper(entry.Level.String())
+	if !f.DisableLevelTruncation {
+		levelText = levelText[0:4]
+	}
+
+	// Remove a single newline if it already exists in the message to keep
+	// the behavior of logrus text_formatter the same as the stdlib log package
+	entry.Message = strings.TrimSuffix(entry.Message, "\n")
+
+	caller := ""
+
+	if entry.HasCaller() {
+		caller = fmt.Sprintf("%s:%d %s()",
+			entry.Caller.File, entry.Caller.Line, entry.Caller.Function)
+	}
 
 	if f.DisableTimestamp {
-		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m%s %-44s ", levelColor, levelText, caller, entry.Message)
 	} else if !f.FullTimestamp {
-		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d]%s %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), caller, entry.Message)
 	} else {
-		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s]%s %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), caller, entry.Message)
 	}
 	for _, k := range keys {
 		v := entry.Data[k]
@@ -125,12 +231,15 @@
 	}
 }
 
-func needsQuoting(text string) bool {
+func (f *TextFormatter) needsQuoting(text string) bool {
+	if f.QuoteEmptyFields && len(text) == 0 {
+		return true
+	}
 	for _, ch := range text {
 		if !((ch >= 'a' && ch <= 'z') ||
 			(ch >= 'A' && ch <= 'Z') ||
 			(ch >= '0' && ch <= '9') ||
-			ch == '-' || ch == '.') {
+			ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
 			return true
 		}
 	}
@@ -138,29 +247,23 @@
 }
 
 func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
-
+	if b.Len() > 0 {
+		b.WriteByte(' ')
+	}
 	b.WriteString(key)
 	b.WriteByte('=')
 	f.appendValue(b, value)
-	b.WriteByte(' ')
 }
 
 func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
-	switch value := value.(type) {
-	case string:
-		if !needsQuoting(value) {
-			b.WriteString(value)
-		} else {
-			fmt.Fprintf(b, "%q", value)
-		}
-	case error:
-		errmsg := value.Error()
-		if !needsQuoting(errmsg) {
-			b.WriteString(errmsg)
-		} else {
-			fmt.Fprintf(b, "%q", errmsg)
-		}
-	default:
-		fmt.Fprint(b, value)
+	stringVal, ok := value.(string)
+	if !ok {
+		stringVal = fmt.Sprint(value)
+	}
+
+	if !f.needsQuoting(stringVal) {
+		b.WriteString(stringVal)
+	} else {
+		b.WriteString(fmt.Sprintf("%q", stringVal))
 	}
 }
diff --git a/vendor/github.com/Sirupsen/logrus/writer.go b/vendor/github.com/Sirupsen/logrus/writer.go
index f74d2aa..9e1f751 100644
--- a/vendor/github.com/Sirupsen/logrus/writer.go
+++ b/vendor/github.com/Sirupsen/logrus/writer.go
@@ -11,39 +11,50 @@
 }
 
 func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
+	return NewEntry(logger).WriterLevel(level)
+}
+
+func (entry *Entry) Writer() *io.PipeWriter {
+	return entry.WriterLevel(InfoLevel)
+}
+
+func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
 	reader, writer := io.Pipe()
 
 	var printFunc func(args ...interface{})
+
 	switch level {
+	case TraceLevel:
+		printFunc = entry.Trace
 	case DebugLevel:
-		printFunc = logger.Debug
+		printFunc = entry.Debug
 	case InfoLevel:
-		printFunc = logger.Info
+		printFunc = entry.Info
 	case WarnLevel:
-		printFunc = logger.Warn
+		printFunc = entry.Warn
 	case ErrorLevel:
-		printFunc = logger.Error
+		printFunc = entry.Error
 	case FatalLevel:
-		printFunc = logger.Fatal
+		printFunc = entry.Fatal
 	case PanicLevel:
-		printFunc = logger.Panic
+		printFunc = entry.Panic
 	default:
-		printFunc = logger.Print
+		printFunc = entry.Print
 	}
 
-	go logger.writerScanner(reader, printFunc)
+	go entry.writerScanner(reader, printFunc)
 	runtime.SetFinalizer(writer, writerFinalizer)
 
 	return writer
 }
 
-func (logger *Logger) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
+func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
 		printFunc(scanner.Text())
 	}
 	if err := scanner.Err(); err != nil {
-		logger.Errorf("Error while reading from Writer: %s", err)
+		entry.Errorf("Error while reading from Writer: %s", err)
 	}
 	reader.Close()
 }
diff --git a/vendor/github.com/gorilla/context/.travis.yml b/vendor/github.com/gorilla/context/.travis.yml
new file mode 100644
index 0000000..6f440f1
--- /dev/null
+++ b/vendor/github.com/gorilla/context/.travis.yml
@@ -0,0 +1,19 @@
+language: go
+sudo: false
+
+matrix:
+  include:
+    - go: 1.3
+    - go: 1.4
+    - go: 1.5
+    - go: 1.6
+    - go: 1.7
+    - go: tip
+  allow_failures:
+    - go: tip
+
+script:
+  - go get -t -v ./...
+  - diff -u <(echo -n) <(gofmt -d .)
+  - go vet $(go list ./... | grep -v /vendor/)
+  - go test -v -race ./...
diff --git a/vendor/github.com/gorilla/context/LICENSE b/vendor/github.com/gorilla/context/LICENSE
new file mode 100644
index 0000000..0e5fb87
--- /dev/null
+++ b/vendor/github.com/gorilla/context/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2012 Rodrigo Moraes. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+	 * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+	 * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+	 * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/gorilla/context/README.md b/vendor/github.com/gorilla/context/README.md
new file mode 100644
index 0000000..08f8669
--- /dev/null
+++ b/vendor/github.com/gorilla/context/README.md
@@ -0,0 +1,10 @@
+context
+=======
+[![Build Status](https://travis-ci.org/gorilla/context.png?branch=master)](https://travis-ci.org/gorilla/context)
+
+gorilla/context is a general purpose registry for global request variables.
+
+> Note: gorilla/context, having been born well before `context.Context` existed, does not play well
+> with the shallow copying of the request that [`http.Request.WithContext`](https://golang.org/pkg/net/http/#Request.WithContext) (added to net/http Go 1.7 onwards) performs. You should either use *just* gorilla/context, or moving forward, the new `http.Request.Context()`.
+
+Read the full documentation here: http://www.gorillatoolkit.org/pkg/context
diff --git a/vendor/github.com/gorilla/context/context.go b/vendor/github.com/gorilla/context/context.go
new file mode 100644
index 0000000..81cb128
--- /dev/null
+++ b/vendor/github.com/gorilla/context/context.go
@@ -0,0 +1,143 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package context
+
+import (
+	"net/http"
+	"sync"
+	"time"
+)
+
+var (
+	mutex sync.RWMutex
+	data  = make(map[*http.Request]map[interface{}]interface{})
+	datat = make(map[*http.Request]int64)
+)
+
+// Set stores a value for a given key in a given request.
+func Set(r *http.Request, key, val interface{}) {
+	mutex.Lock()
+	if data[r] == nil {
+		data[r] = make(map[interface{}]interface{})
+		datat[r] = time.Now().Unix()
+	}
+	data[r][key] = val
+	mutex.Unlock()
+}
+
+// Get returns a value stored for a given key in a given request.
+func Get(r *http.Request, key interface{}) interface{} {
+	mutex.RLock()
+	if ctx := data[r]; ctx != nil {
+		value := ctx[key]
+		mutex.RUnlock()
+		return value
+	}
+	mutex.RUnlock()
+	return nil
+}
+
+// GetOk returns stored value and presence state like multi-value return of map access.
+func GetOk(r *http.Request, key interface{}) (interface{}, bool) {
+	mutex.RLock()
+	if _, ok := data[r]; ok {
+		value, ok := data[r][key]
+		mutex.RUnlock()
+		return value, ok
+	}
+	mutex.RUnlock()
+	return nil, false
+}
+
+// GetAll returns all stored values for the request as a map. Nil is returned for invalid requests.
+func GetAll(r *http.Request) map[interface{}]interface{} {
+	mutex.RLock()
+	if context, ok := data[r]; ok {
+		result := make(map[interface{}]interface{}, len(context))
+		for k, v := range context {
+			result[k] = v
+		}
+		mutex.RUnlock()
+		return result
+	}
+	mutex.RUnlock()
+	return nil
+}
+
+// GetAllOk returns all stored values for the request as a map and a boolean value that indicates if
+// the request was registered.
+func GetAllOk(r *http.Request) (map[interface{}]interface{}, bool) {
+	mutex.RLock()
+	context, ok := data[r]
+	result := make(map[interface{}]interface{}, len(context))
+	for k, v := range context {
+		result[k] = v
+	}
+	mutex.RUnlock()
+	return result, ok
+}
+
+// Delete removes a value stored for a given key in a given request.
+func Delete(r *http.Request, key interface{}) {
+	mutex.Lock()
+	if data[r] != nil {
+		delete(data[r], key)
+	}
+	mutex.Unlock()
+}
+
+// Clear removes all values stored for a given request.
+//
+// This is usually called by a handler wrapper to clean up request
+// variables at the end of a request lifetime. See ClearHandler().
+func Clear(r *http.Request) {
+	mutex.Lock()
+	clear(r)
+	mutex.Unlock()
+}
+
+// clear is Clear without the lock.
+func clear(r *http.Request) {
+	delete(data, r)
+	delete(datat, r)
+}
+
+// Purge removes request data stored for longer than maxAge, in seconds.
+// It returns the amount of requests removed.
+//
+// If maxAge <= 0, all request data is removed.
+//
+// This is only used for sanity check: in case context cleaning was not
+// properly set some request data can be kept forever, consuming an increasing
+// amount of memory. In case this is detected, Purge() must be called
+// periodically until the problem is fixed.
+func Purge(maxAge int) int {
+	mutex.Lock()
+	count := 0
+	if maxAge <= 0 {
+		count = len(data)
+		data = make(map[*http.Request]map[interface{}]interface{})
+		datat = make(map[*http.Request]int64)
+	} else {
+		min := time.Now().Unix() - int64(maxAge)
+		for r := range data {
+			if datat[r] < min {
+				clear(r)
+				count++
+			}
+		}
+	}
+	mutex.Unlock()
+	return count
+}
+
+// ClearHandler wraps an http.Handler and clears request values at the end
+// of a request lifetime.
+func ClearHandler(h http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		defer Clear(r)
+		h.ServeHTTP(w, r)
+	})
+}
diff --git a/vendor/github.com/gorilla/context/doc.go b/vendor/github.com/gorilla/context/doc.go
new file mode 100644
index 0000000..448d1bf
--- /dev/null
+++ b/vendor/github.com/gorilla/context/doc.go
@@ -0,0 +1,88 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package context stores values shared during a request lifetime.
+
+Note: gorilla/context, having been born well before `context.Context` existed,
+does not play well > with the shallow copying of the request that
+[`http.Request.WithContext`](https://golang.org/pkg/net/http/#Request.WithContext)
+(added to net/http Go 1.7 onwards) performs. You should either use *just*
+gorilla/context, or moving forward, the new `http.Request.Context()`.
+
+For example, a router can set variables extracted from the URL and later
+application handlers can access those values, or it can be used to store
+sessions values to be saved at the end of a request. There are several
+others common uses.
+
+The idea was posted by Brad Fitzpatrick to the go-nuts mailing list:
+
+	http://groups.google.com/group/golang-nuts/msg/e2d679d303aa5d53
+
+Here's the basic usage: first define the keys that you will need. The key
+type is interface{} so a key can be of any type that supports equality.
+Here we define a key using a custom int type to avoid name collisions:
+
+	package foo
+
+	import (
+		"github.com/gorilla/context"
+	)
+
+	type key int
+
+	const MyKey key = 0
+
+Then set a variable. Variables are bound to an http.Request object, so you
+need a request instance to set a value:
+
+	context.Set(r, MyKey, "bar")
+
+The application can later access the variable using the same key you provided:
+
+	func MyHandler(w http.ResponseWriter, r *http.Request) {
+		// val is "bar".
+		val := context.Get(r, foo.MyKey)
+
+		// returns ("bar", true)
+		val, ok := context.GetOk(r, foo.MyKey)
+		// ...
+	}
+
+And that's all about the basic usage. We discuss some other ideas below.
+
+Any type can be stored in the context. To enforce a given type, make the key
+private and wrap Get() and Set() to accept and return values of a specific
+type:
+
+	type key int
+
+	const mykey key = 0
+
+	// GetMyKey returns a value for this package from the request values.
+	func GetMyKey(r *http.Request) SomeType {
+		if rv := context.Get(r, mykey); rv != nil {
+			return rv.(SomeType)
+		}
+		return nil
+	}
+
+	// SetMyKey sets a value for this package in the request values.
+	func SetMyKey(r *http.Request, val SomeType) {
+		context.Set(r, mykey, val)
+	}
+
+Variables must be cleared at the end of a request, to remove all values
+that were stored. This can be done in an http.Handler, after a request was
+served. Just call Clear() passing the request:
+
+	context.Clear(r)
+
+...or use ClearHandler(), which conveniently wraps an http.Handler to clear
+variables at the end of a request lifetime.
+
+The Routers from the packages gorilla/mux and gorilla/pat call Clear()
+so if you are using either of them you don't need to clear the context manually.
+*/
+package context
diff --git a/vendor/github.com/gorilla/mux/.travis.yml b/vendor/github.com/gorilla/mux/.travis.yml
new file mode 100644
index 0000000..ad0935d
--- /dev/null
+++ b/vendor/github.com/gorilla/mux/.travis.yml
@@ -0,0 +1,23 @@
+language: go
+sudo: false
+
+matrix:
+  include:
+    - go: 1.5.x
+    - go: 1.6.x
+    - go: 1.7.x
+    - go: 1.8.x
+    - go: 1.9.x
+    - go: 1.10.x
+    - go: tip
+  allow_failures:
+    - go: tip
+
+install:
+  - # Skip
+
+script:
+  - go get -t -v ./...
+  - diff -u <(echo -n) <(gofmt -d .)
+  - go tool vet .
+  - go test -v -race ./...
diff --git a/vendor/github.com/gorilla/mux/ISSUE_TEMPLATE.md b/vendor/github.com/gorilla/mux/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000..232be82
--- /dev/null
+++ b/vendor/github.com/gorilla/mux/ISSUE_TEMPLATE.md
@@ -0,0 +1,11 @@
+**What version of Go are you running?** (Paste the output of `go version`)
+
+
+**What version of gorilla/mux are you at?** (Paste the output of `git rev-parse HEAD` inside `$GOPATH/src/github.com/gorilla/mux`)
+
+
+**Describe your problem** (and what you have tried so far)
+
+
+**Paste a minimal, runnable, reproduction of your issue below** (use backticks to format it)
+
diff --git a/vendor/github.com/gorilla/mux/README.md b/vendor/github.com/gorilla/mux/README.md
index 94d396c..e424397 100644
--- a/vendor/github.com/gorilla/mux/README.md
+++ b/vendor/github.com/gorilla/mux/README.md
@@ -1,7 +1,8 @@
-gorilla/mux
-===
+# gorilla/mux
+
 [![GoDoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
 [![Build Status](https://travis-ci.org/gorilla/mux.svg?branch=master)](https://travis-ci.org/gorilla/mux)
+[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
 
 ![Gorilla Logo](http://www.gorillatoolkit.org/static/images/gorilla-icon-64.png)
 
@@ -14,7 +15,7 @@
 
 * It implements the `http.Handler` interface so it is compatible with the standard `http.ServeMux`.
 * Requests can be matched based on URL host, path, path prefix, schemes, header and query values, HTTP methods or using custom matchers.
-* URL hosts and paths can have variables with an optional regular expression.
+* URL hosts, paths and query values can have variables with an optional regular expression.
 * Registered URLs can be built, or "reversed", which helps maintaining references to resources.
 * Routes can be used as subrouters: nested routes are only tested if the parent route matches. This is useful to define groups of routes that share common conditions like a host, a path prefix or other repeated attributes. As a bonus, this optimizes request matching.
 
@@ -23,9 +24,12 @@
 * [Install](#install)
 * [Examples](#examples)
 * [Matching Routes](#matching-routes)
-* [Listing Routes](#listing-routes)
 * [Static Files](#static-files)
 * [Registered URLs](#registered-urls)
+* [Walking Routes](#walking-routes)
+* [Graceful Shutdown](#graceful-shutdown)
+* [Middleware](#middleware)
+* [Testing Handlers](#testing-handlers)
 * [Full Example](#full-example)
 
 ---
@@ -44,11 +48,11 @@
 
 ```go
 func main() {
-	r := mux.NewRouter()
-	r.HandleFunc("/", HomeHandler)
-	r.HandleFunc("/products", ProductsHandler)
-	r.HandleFunc("/articles", ArticlesHandler)
-	http.Handle("/", r)
+    r := mux.NewRouter()
+    r.HandleFunc("/", HomeHandler)
+    r.HandleFunc("/products", ProductsHandler)
+    r.HandleFunc("/articles", ArticlesHandler)
+    http.Handle("/", r)
 }
 ```
 
@@ -67,9 +71,9 @@
 
 ```go
 func ArticlesCategoryHandler(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-	w.WriteHeader(http.StatusOK)
-	fmt.Fprintf(w, "Category: %v\n", vars["category"])
+    vars := mux.Vars(r)
+    w.WriteHeader(http.StatusOK)
+    fmt.Fprintf(w, "Category: %v\n", vars["category"])
 }
 ```
 
@@ -121,7 +125,7 @@
 
 ```go
 r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
-	return r.ProtoMajor == 0
+    return r.ProtoMajor == 0
 })
 ```
 
@@ -134,6 +138,14 @@
   Schemes("http")
 ```
 
+Routes are tested in the order they were added to the router. If two routes match, the first one wins:
+
+```go
+r := mux.NewRouter()
+r.HandleFunc("/specific", specificHandler)
+r.PathPrefix("/").Handler(catchAllHandler)
+```
+
 Setting the same matching conditions again and again can be boring, so we have a way to group several routes that share the same requirements. We call it "subrouting".
 
 For example, let's say we have several URLs that should only match when the host is `www.example.com`. Create a route for that host and get a "subrouter" from it:
@@ -168,68 +180,33 @@
 s.HandleFunc("/{key}/details", ProductDetailsHandler)
 ```
 
-### Listing Routes
-
-Routes on a mux can be listed using the Router.Walk method—useful for generating documentation:
-
-```go
-package main
-
-import (
-    "fmt"
-    "net/http"
-
-    "github.com/gorilla/mux"
-)
-
-func handler(w http.ResponseWriter, r *http.Request) {
-    return
-}
-
-func main() {
-    r := mux.NewRouter()
-    r.HandleFunc("/", handler)
-    r.HandleFunc("/products", handler)
-    r.HandleFunc("/articles", handler)
-    r.HandleFunc("/articles/{id}", handler)
-    r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
-        t, err := route.GetPathTemplate()
-        if err != nil {
-            return err
-        }
-        fmt.Println(t)
-        return nil
-    })
-    http.Handle("/", r)
-}
-```
 
 ### Static Files
 
 Note that the path provided to `PathPrefix()` represents a "wildcard": calling
 `PathPrefix("/static/").Handler(...)` means that the handler will be passed any
-request that matches "/static/*". This makes it easy to serve static files with mux:
+request that matches "/static/\*". This makes it easy to serve static files with mux:
 
 ```go
 func main() {
-	var dir string
+    var dir string
 
-	flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
-	flag.Parse()
-	r := mux.NewRouter()
+    flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
+    flag.Parse()
+    r := mux.NewRouter()
 
-	// This will serve files under http://localhost:8000/static/<filename>
-	r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
+    // This will serve files under http://localhost:8000/static/<filename>
+    r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
 
-	srv := &http.Server{
-		Handler:      r,
-		Addr:         "127.0.0.1:8000",
-		// Good practice: enforce timeouts for servers you create!
-		WriteTimeout: 15 * time.Second,
-		ReadTimeout:  15 * time.Second,
-	}
+    srv := &http.Server{
+        Handler:      r,
+        Addr:         "127.0.0.1:8000",
+        // Good practice: enforce timeouts for servers you create!
+        WriteTimeout: 15 * time.Second,
+        ReadTimeout:  15 * time.Second,
+    }
 
-	log.Fatal(srv.ListenAndServe())
+    log.Fatal(srv.ListenAndServe())
 }
 ```
 
@@ -257,19 +234,21 @@
 "/articles/technology/42"
 ```
 
-This also works for host variables:
+This also works for host and query value variables:
 
 ```go
 r := mux.NewRouter()
 r.Host("{subdomain}.domain.com").
   Path("/articles/{category}/{id:[0-9]+}").
+  Queries("filter", "{filter}").
   HandlerFunc(ArticleHandler).
   Name("article")
 
-// url.String() will be "http://news.domain.com/articles/technology/42"
+// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
 url, err := r.Get("article").URL("subdomain", "news",
                                  "category", "technology",
-                                 "id", "42")
+                                 "id", "42",
+                                 "filter", "gorilla")
 ```
 
 All variables defined in the route are required, and their values must conform to the corresponding patterns. These requirements guarantee that a generated URL will always match a registered route -- the only exception is for explicitly defined "build-only" routes which never match.
@@ -307,6 +286,337 @@
                                  "id", "42")
 ```
 
+### Walking Routes
+
+The `Walk` function on `mux.Router` can be used to visit all of the routes that are registered on a router. For example,
+the following prints all of the registered routes:
+
+```go
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gorilla/mux"
+)
+
+func handler(w http.ResponseWriter, r *http.Request) {
+	return
+}
+
+func main() {
+	r := mux.NewRouter()
+	r.HandleFunc("/", handler)
+	r.HandleFunc("/products", handler).Methods("POST")
+	r.HandleFunc("/articles", handler).Methods("GET")
+	r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
+	r.HandleFunc("/authors", handler).Queries("surname", "{surname}")
+	err := r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
+		pathTemplate, err := route.GetPathTemplate()
+		if err == nil {
+			fmt.Println("ROUTE:", pathTemplate)
+		}
+		pathRegexp, err := route.GetPathRegexp()
+		if err == nil {
+			fmt.Println("Path regexp:", pathRegexp)
+		}
+		queriesTemplates, err := route.GetQueriesTemplates()
+		if err == nil {
+			fmt.Println("Queries templates:", strings.Join(queriesTemplates, ","))
+		}
+		queriesRegexps, err := route.GetQueriesRegexp()
+		if err == nil {
+			fmt.Println("Queries regexps:", strings.Join(queriesRegexps, ","))
+		}
+		methods, err := route.GetMethods()
+		if err == nil {
+			fmt.Println("Methods:", strings.Join(methods, ","))
+		}
+		fmt.Println()
+		return nil
+	})
+
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	http.Handle("/", r)
+}
+```
+
+### Graceful Shutdown
+
+Go 1.8 introduced the ability to [gracefully shutdown](https://golang.org/doc/go1.8#http_shutdown) a `*http.Server`. Here's how to do that alongside `mux`:
+
+```go
+package main
+
+import (
+    "context"
+    "flag"
+    "log"
+    "net/http"
+    "os"
+    "os/signal"
+    "time"
+
+    "github.com/gorilla/mux"
+)
+
+func main() {
+    var wait time.Duration
+    flag.DurationVar(&wait, "graceful-timeout", time.Second * 15, "the duration for which the server gracefully wait for existing connections to finish - e.g. 15s or 1m")
+    flag.Parse()
+
+    r := mux.NewRouter()
+    // Add your routes as needed
+
+    srv := &http.Server{
+        Addr:         "0.0.0.0:8080",
+        // Good practice to set timeouts to avoid Slowloris attacks.
+        WriteTimeout: time.Second * 15,
+        ReadTimeout:  time.Second * 15,
+        IdleTimeout:  time.Second * 60,
+        Handler: r, // Pass our instance of gorilla/mux in.
+    }
+
+    // Run our server in a goroutine so that it doesn't block.
+    go func() {
+        if err := srv.ListenAndServe(); err != nil {
+            log.Println(err)
+        }
+    }()
+
+    c := make(chan os.Signal, 1)
+    // We'll accept graceful shutdowns when quit via SIGINT (Ctrl+C)
+    // SIGKILL, SIGQUIT or SIGTERM (Ctrl+/) will not be caught.
+    signal.Notify(c, os.Interrupt)
+
+    // Block until we receive our signal.
+    <-c
+
+    // Create a deadline to wait for.
+    ctx, cancel := context.WithTimeout(context.Background(), wait)
+    defer cancel()
+    // Doesn't block if no connections, but will otherwise wait
+    // until the timeout deadline.
+    srv.Shutdown(ctx)
+    // Optionally, you could run srv.Shutdown in a goroutine and block on
+    // <-ctx.Done() if your application should wait for other services
+    // to finalize based on context cancellation.
+    log.Println("shutting down")
+    os.Exit(0)
+}
+```
+
+### Middleware
+
+Mux supports the addition of middlewares to a [Router](https://godoc.org/github.com/gorilla/mux#Router), which are executed in the order they are added if a match is found, including its subrouters.
+Middlewares are (typically) small pieces of code which take one request, do something with it, and pass it down to another middleware or the final handler. Some common use cases for middleware are request logging, header manipulation, or `ResponseWriter` hijacking.
+
+Mux middlewares are defined using the de facto standard type:
+
+```go
+type MiddlewareFunc func(http.Handler) http.Handler
+```
+
+Typically, the returned handler is a closure which does something with the http.ResponseWriter and http.Request passed to it, and then calls the handler passed as parameter to the MiddlewareFunc. This takes advantage of closures being able access variables from the context where they are created, while retaining the signature enforced by the receivers.
+
+A very basic middleware which logs the URI of the request being handled could be written as:
+
+```go
+func loggingMiddleware(next http.Handler) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        // Do stuff here
+        log.Println(r.RequestURI)
+        // Call the next handler, which can be another middleware in the chain, or the final handler.
+        next.ServeHTTP(w, r)
+    })
+}
+```
+
+Middlewares can be added to a router using `Router.Use()`:
+
+```go
+r := mux.NewRouter()
+r.HandleFunc("/", handler)
+r.Use(loggingMiddleware)
+```
+
+A more complex authentication middleware, which maps session token to users, could be written as:
+
+```go
+// Define our struct
+type authenticationMiddleware struct {
+	tokenUsers map[string]string
+}
+
+// Initialize it somewhere
+func (amw *authenticationMiddleware) Populate() {
+	amw.tokenUsers["00000000"] = "user0"
+	amw.tokenUsers["aaaaaaaa"] = "userA"
+	amw.tokenUsers["05f717e5"] = "randomUser"
+	amw.tokenUsers["deadbeef"] = "user0"
+}
+
+// Middleware function, which will be called for each request
+func (amw *authenticationMiddleware) Middleware(next http.Handler) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        token := r.Header.Get("X-Session-Token")
+
+        if user, found := amw.tokenUsers[token]; found {
+        	// We found the token in our map
+        	log.Printf("Authenticated user %s\n", user)
+        	// Pass down the request to the next middleware (or final handler)
+        	next.ServeHTTP(w, r)
+        } else {
+        	// Write an error and stop the handler chain
+        	http.Error(w, "Forbidden", http.StatusForbidden)
+        }
+    })
+}
+```
+
+```go
+r := mux.NewRouter()
+r.HandleFunc("/", handler)
+
+amw := authenticationMiddleware{}
+amw.Populate()
+
+r.Use(amw.Middleware)
+```
+
+Note: The handler chain will be stopped if your middleware doesn't call `next.ServeHTTP()` with the corresponding parameters. This can be used to abort a request if the middleware writer wants to. Middlewares _should_ write to `ResponseWriter` if they _are_ going to terminate the request, and they _should not_ write to `ResponseWriter` if they _are not_ going to terminate it.
+
+### Testing Handlers
+
+Testing handlers in a Go web application is straightforward, and _mux_ doesn't complicate this any further. Given two files: `endpoints.go` and `endpoints_test.go`, here's how we'd test an application using _mux_.
+
+First, our simple HTTP handler:
+
+```go
+// endpoints.go
+package main
+
+func HealthCheckHandler(w http.ResponseWriter, r *http.Request) {
+    // A very simple health check.
+    w.WriteHeader(http.StatusOK)
+    w.Header().Set("Content-Type", "application/json")
+
+    // In the future we could report back on the status of our DB, or our cache
+    // (e.g. Redis) by performing a simple PING, and include them in the response.
+    io.WriteString(w, `{"alive": true}`)
+}
+
+func main() {
+    r := mux.NewRouter()
+    r.HandleFunc("/health", HealthCheckHandler)
+
+    log.Fatal(http.ListenAndServe("localhost:8080", r))
+}
+```
+
+Our test code:
+
+```go
+// endpoints_test.go
+package main
+
+import (
+    "net/http"
+    "net/http/httptest"
+    "testing"
+)
+
+func TestHealthCheckHandler(t *testing.T) {
+    // Create a request to pass to our handler. We don't have any query parameters for now, so we'll
+    // pass 'nil' as the third parameter.
+    req, err := http.NewRequest("GET", "/health", nil)
+    if err != nil {
+        t.Fatal(err)
+    }
+
+    // We create a ResponseRecorder (which satisfies http.ResponseWriter) to record the response.
+    rr := httptest.NewRecorder()
+    handler := http.HandlerFunc(HealthCheckHandler)
+
+    // Our handlers satisfy http.Handler, so we can call their ServeHTTP method
+    // directly and pass in our Request and ResponseRecorder.
+    handler.ServeHTTP(rr, req)
+
+    // Check the status code is what we expect.
+    if status := rr.Code; status != http.StatusOK {
+        t.Errorf("handler returned wrong status code: got %v want %v",
+            status, http.StatusOK)
+    }
+
+    // Check the response body is what we expect.
+    expected := `{"alive": true}`
+    if rr.Body.String() != expected {
+        t.Errorf("handler returned unexpected body: got %v want %v",
+            rr.Body.String(), expected)
+    }
+}
+```
+
+In the case that our routes have [variables](#examples), we can pass those in the request. We could write
+[table-driven tests](https://dave.cheney.net/2013/06/09/writing-table-driven-tests-in-go) to test multiple
+possible route variables as needed.
+
+```go
+// endpoints.go
+func main() {
+    r := mux.NewRouter()
+    // A route with a route variable:
+    r.HandleFunc("/metrics/{type}", MetricsHandler)
+
+    log.Fatal(http.ListenAndServe("localhost:8080", r))
+}
+```
+
+Our test file, with a table-driven test of `routeVariables`:
+
+```go
+// endpoints_test.go
+func TestMetricsHandler(t *testing.T) {
+    tt := []struct{
+        routeVariable string
+        shouldPass bool
+    }{
+        {"goroutines", true},
+        {"heap", true},
+        {"counters", true},
+        {"queries", true},
+        {"adhadaeqm3k", false},
+    }
+
+    for _, tc := range tt {
+        path := fmt.Sprintf("/metrics/%s", tc.routeVariable)
+        req, err := http.NewRequest("GET", path, nil)
+        if err != nil {
+            t.Fatal(err)
+        }
+
+        rr := httptest.NewRecorder()
+	
+	// Need to create a router that we can pass the request through so that the vars will be added to the context
+	router := mux.NewRouter()
+        router.HandleFunc("/metrics/{type}", MetricsHandler)
+        router.ServeHTTP(rr, req)
+
+        // In this case, our MetricsHandler returns a non-200 response
+        // for a route variable it doesn't know about.
+        if rr.Code == http.StatusOK && !tc.shouldPass {
+            t.Errorf("handler should have failed on routeVariable %s: got %v want %v",
+                tc.routeVariable, rr.Code, http.StatusOK)
+        }
+    }
+}
+```
+
 ## Full Example
 
 Here's a complete, runnable example of a small `mux` based server:
@@ -315,22 +625,22 @@
 package main
 
 import (
-	"net/http"
-	"log"
-	"github.com/gorilla/mux"
+    "net/http"
+    "log"
+    "github.com/gorilla/mux"
 )
 
 func YourHandler(w http.ResponseWriter, r *http.Request) {
-	w.Write([]byte("Gorilla!\n"))
+    w.Write([]byte("Gorilla!\n"))
 }
 
 func main() {
-	r := mux.NewRouter()
-	// Routes consist of a path and a handler function.
-	r.HandleFunc("/", YourHandler)
+    r := mux.NewRouter()
+    // Routes consist of a path and a handler function.
+    r.HandleFunc("/", YourHandler)
 
-	// Bind to a port and pass our router in
-	log.Fatal(http.ListenAndServe(":8000", r))
+    // Bind to a port and pass our router in
+    log.Fatal(http.ListenAndServe(":8000", r))
 }
 ```
 
diff --git a/vendor/github.com/gorilla/mux/doc.go b/vendor/github.com/gorilla/mux/doc.go
index 00daf4a..38957de 100644
--- a/vendor/github.com/gorilla/mux/doc.go
+++ b/vendor/github.com/gorilla/mux/doc.go
@@ -12,8 +12,8 @@
 
 	* Requests can be matched based on URL host, path, path prefix, schemes,
 	  header and query values, HTTP methods or using custom matchers.
-	* URL hosts and paths can have variables with an optional regular
-	  expression.
+	* URL hosts, paths and query values can have variables with an optional
+	  regular expression.
 	* Registered URLs can be built, or "reversed", which helps maintaining
 	  references to resources.
 	* Routes can be used as subrouters: nested routes are only tested if the
@@ -188,18 +188,20 @@
 
 	"/articles/technology/42"
 
-This also works for host variables:
+This also works for host and query value variables:
 
 	r := mux.NewRouter()
 	r.Host("{subdomain}.domain.com").
 	  Path("/articles/{category}/{id:[0-9]+}").
+	  Queries("filter", "{filter}").
 	  HandlerFunc(ArticleHandler).
 	  Name("article")
 
-	// url.String() will be "http://news.domain.com/articles/technology/42"
+	// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
 	url, err := r.Get("article").URL("subdomain", "news",
 	                                 "category", "technology",
-	                                 "id", "42")
+	                                 "id", "42",
+	                                 "filter", "gorilla")
 
 All variables defined in the route are required, and their values must
 conform to the corresponding patterns. These requirements guarantee that a
@@ -236,5 +238,69 @@
 	url, err := r.Get("article").URL("subdomain", "news",
 	                                 "category", "technology",
 	                                 "id", "42")
+
+Mux supports the addition of middlewares to a Router, which are executed in the order they are added if a match is found, including its subrouters. Middlewares are (typically) small pieces of code which take one request, do something with it, and pass it down to another middleware or the final handler. Some common use cases for middleware are request logging, header manipulation, or ResponseWriter hijacking.
+
+	type MiddlewareFunc func(http.Handler) http.Handler
+
+Typically, the returned handler is a closure which does something with the http.ResponseWriter and http.Request passed to it, and then calls the handler passed as parameter to the MiddlewareFunc (closures can access variables from the context where they are created).
+
+A very basic middleware which logs the URI of the request being handled could be written as:
+
+	func simpleMw(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			// Do stuff here
+			log.Println(r.RequestURI)
+			// Call the next handler, which can be another middleware in the chain, or the final handler.
+			next.ServeHTTP(w, r)
+		})
+	}
+
+Middlewares can be added to a router using `Router.Use()`:
+
+	r := mux.NewRouter()
+	r.HandleFunc("/", handler)
+	r.Use(simpleMw)
+
+A more complex authentication middleware, which maps session token to users, could be written as:
+
+	// Define our struct
+	type authenticationMiddleware struct {
+		tokenUsers map[string]string
+	}
+
+	// Initialize it somewhere
+	func (amw *authenticationMiddleware) Populate() {
+		amw.tokenUsers["00000000"] = "user0"
+		amw.tokenUsers["aaaaaaaa"] = "userA"
+		amw.tokenUsers["05f717e5"] = "randomUser"
+		amw.tokenUsers["deadbeef"] = "user0"
+	}
+
+	// Middleware function, which will be called for each request
+	func (amw *authenticationMiddleware) Middleware(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			token := r.Header.Get("X-Session-Token")
+
+			if user, found := amw.tokenUsers[token]; found {
+				// We found the token in our map
+				log.Printf("Authenticated user %s\n", user)
+				next.ServeHTTP(w, r)
+			} else {
+				http.Error(w, "Forbidden", http.StatusForbidden)
+			}
+		})
+	}
+
+	r := mux.NewRouter()
+	r.HandleFunc("/", handler)
+
+	amw := authenticationMiddleware{}
+	amw.Populate()
+
+	r.Use(amw.Middleware)
+
+Note: The handler chain will be stopped if your middleware doesn't call `next.ServeHTTP()` with the corresponding parameters. This can be used to abort a request if the middleware writer wants to.
+
 */
 package mux
diff --git a/vendor/github.com/gorilla/mux/middleware.go b/vendor/github.com/gorilla/mux/middleware.go
new file mode 100644
index 0000000..ceb812c
--- /dev/null
+++ b/vendor/github.com/gorilla/mux/middleware.go
@@ -0,0 +1,72 @@
+package mux
+
+import (
+	"net/http"
+	"strings"
+)
+
+// MiddlewareFunc is a function which receives an http.Handler and returns another http.Handler.
+// Typically, the returned handler is a closure which does something with the http.ResponseWriter and http.Request passed
+// to it, and then calls the handler passed as parameter to the MiddlewareFunc.
+type MiddlewareFunc func(http.Handler) http.Handler
+
+// middleware interface is anything which implements a MiddlewareFunc named Middleware.
+type middleware interface {
+	Middleware(handler http.Handler) http.Handler
+}
+
+// Middleware allows MiddlewareFunc to implement the middleware interface.
+func (mw MiddlewareFunc) Middleware(handler http.Handler) http.Handler {
+	return mw(handler)
+}
+
+// Use appends a MiddlewareFunc to the chain. Middleware can be used to intercept or otherwise modify requests and/or responses, and are executed in the order that they are applied to the Router.
+func (r *Router) Use(mwf ...MiddlewareFunc) {
+	for _, fn := range mwf {
+		r.middlewares = append(r.middlewares, fn)
+	}
+}
+
+// useInterface appends a middleware to the chain. Middleware can be used to intercept or otherwise modify requests and/or responses, and are executed in the order that they are applied to the Router.
+func (r *Router) useInterface(mw middleware) {
+	r.middlewares = append(r.middlewares, mw)
+}
+
+// CORSMethodMiddleware sets the Access-Control-Allow-Methods response header
+// on a request, by matching routes based only on paths. It also handles
+// OPTIONS requests, by settings Access-Control-Allow-Methods, and then
+// returning without calling the next http handler.
+func CORSMethodMiddleware(r *Router) MiddlewareFunc {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+			var allMethods []string
+
+			err := r.Walk(func(route *Route, _ *Router, _ []*Route) error {
+				for _, m := range route.matchers {
+					if _, ok := m.(*routeRegexp); ok {
+						if m.Match(req, &RouteMatch{}) {
+							methods, err := route.GetMethods()
+							if err != nil {
+								return err
+							}
+
+							allMethods = append(allMethods, methods...)
+						}
+						break
+					}
+				}
+				return nil
+			})
+
+			if err == nil {
+				w.Header().Set("Access-Control-Allow-Methods", strings.Join(append(allMethods, "OPTIONS"), ","))
+
+				if req.Method == "OPTIONS" {
+					return
+				}
+			}
+
+			next.ServeHTTP(w, req)
+		})
+	}
+}
diff --git a/vendor/github.com/gorilla/mux/mux.go b/vendor/github.com/gorilla/mux/mux.go
index d66ec38..4bbafa5 100644
--- a/vendor/github.com/gorilla/mux/mux.go
+++ b/vendor/github.com/gorilla/mux/mux.go
@@ -10,7 +10,14 @@
 	"net/http"
 	"path"
 	"regexp"
-	"strings"
+)
+
+var (
+	// ErrMethodMismatch is returned when the method in the request does not match
+	// the method defined against the route.
+	ErrMethodMismatch = errors.New("method is not allowed")
+	// ErrNotFound is returned when no route match is found.
+	ErrNotFound = errors.New("no matching route was found")
 )
 
 // NewRouter returns a new router instance.
@@ -39,6 +46,10 @@
 type Router struct {
 	// Configurable Handler to be used when no route matches.
 	NotFoundHandler http.Handler
+
+	// Configurable Handler to be used when the request method does not match the route.
+	MethodNotAllowedHandler http.Handler
+
 	// Parent route, if this is a subrouter.
 	parent parentRoute
 	// Routes to be matched, in order.
@@ -55,21 +66,51 @@
 	KeepContext bool
 	// see Router.UseEncodedPath(). This defines a flag for all routes.
 	useEncodedPath bool
+	// Slice of middlewares to be called after a match is found
+	middlewares []middleware
 }
 
-// Match matches registered routes against the request.
+// Match attempts to match the given request against the router's registered routes.
+//
+// If the request matches a route of this router or one of its subrouters the Route,
+// Handler, and Vars fields of the the match argument are filled and this function
+// returns true.
+//
+// If the request does not match any of this router's or its subrouters' routes
+// then this function returns false. If available, a reason for the match failure
+// will be filled in the match argument's MatchErr field. If the match failure type
+// (eg: not found) has a registered handler, the handler is assigned to the Handler
+// field of the match argument.
 func (r *Router) Match(req *http.Request, match *RouteMatch) bool {
 	for _, route := range r.routes {
 		if route.Match(req, match) {
+			// Build middleware chain if no error was found
+			if match.MatchErr == nil {
+				for i := len(r.middlewares) - 1; i >= 0; i-- {
+					match.Handler = r.middlewares[i].Middleware(match.Handler)
+				}
+			}
 			return true
 		}
 	}
 
+	if match.MatchErr == ErrMethodMismatch {
+		if r.MethodNotAllowedHandler != nil {
+			match.Handler = r.MethodNotAllowedHandler
+			return true
+		}
+
+		return false
+	}
+
 	// Closest match for a router (includes sub-routers)
 	if r.NotFoundHandler != nil {
 		match.Handler = r.NotFoundHandler
+		match.MatchErr = ErrNotFound
 		return true
 	}
+
+	match.MatchErr = ErrNotFound
 	return false
 }
 
@@ -81,7 +122,7 @@
 	if !r.skipClean {
 		path := req.URL.Path
 		if r.useEncodedPath {
-			path = getPath(req)
+			path = req.URL.EscapedPath()
 		}
 		// Clean path to canonical form and redirect.
 		if p := cleanPath(path); p != path {
@@ -105,12 +146,19 @@
 		req = setVars(req, match.Vars)
 		req = setCurrentRoute(req, match.Route)
 	}
+
+	if handler == nil && match.MatchErr == ErrMethodMismatch {
+		handler = methodNotAllowedHandler()
+	}
+
 	if handler == nil {
 		handler = http.NotFoundHandler()
 	}
+
 	if !r.KeepContext {
 		defer contextClear(req)
 	}
+
 	handler.ServeHTTP(w, req)
 }
 
@@ -128,13 +176,18 @@
 // StrictSlash defines the trailing slash behavior for new routes. The initial
 // value is false.
 //
-// When true, if the route path is "/path/", accessing "/path" will redirect
+// When true, if the route path is "/path/", accessing "/path" will perform a redirect
 // to the former and vice versa. In other words, your application will always
 // see the path as specified in the route.
 //
 // When false, if the route path is "/path", accessing "/path/" will not match
 // this route and vice versa.
 //
+// The re-direct is a HTTP 301 (Moved Permanently). Note that when this is set for
+// routes with a non-idempotent method (e.g. POST, PUT), the subsequent re-directed
+// request will be made as a GET by most clients. Use middleware or client settings
+// to modify this behaviour as needed.
+//
 // Special case: when a route sets a path prefix using the PathPrefix() method,
 // strict slash is ignored for that route because the redirect behavior can't
 // be determined from a prefix alone. However, any subrouters created from that
@@ -160,10 +213,6 @@
 // UseEncodedPath tells the router to match the encoded original path
 // to the routes.
 // For eg. "/path/foo%2Fbar/to" will match the path "/path/{var}/to".
-// This behavior has the drawback of needing to match routes against
-// r.RequestURI instead of r.URL.Path. Any modifications (such as http.StripPrefix)
-// to r.URL.Path will not affect routing when this flag is on and thus may
-// induce unintended behavior.
 //
 // If not called, the router will match the unencoded path to the routes.
 // For eg. "/path/foo%2Fbar/to" will match the path "/path/foo/bar/to"
@@ -176,6 +225,13 @@
 // parentRoute
 // ----------------------------------------------------------------------------
 
+func (r *Router) getBuildScheme() string {
+	if r.parent != nil {
+		return r.parent.getBuildScheme()
+	}
+	return ""
+}
+
 // getNamedRoutes returns the map where named routes are registered.
 func (r *Router) getNamedRoutes() map[string]*Route {
 	if r.namedRoutes == nil {
@@ -299,10 +355,6 @@
 
 func (r *Router) walk(walkFn WalkFunc, ancestors []*Route) error {
 	for _, t := range r.routes {
-		if t.regexp == nil || t.regexp.path == nil || t.regexp.path.template == "" {
-			continue
-		}
-
 		err := walkFn(t, r, ancestors)
 		if err == SkipRouter {
 			continue
@@ -312,10 +364,12 @@
 		}
 		for _, sr := range t.matchers {
 			if h, ok := sr.(*Router); ok {
+				ancestors = append(ancestors, t)
 				err := h.walk(walkFn, ancestors)
 				if err != nil {
 					return err
 				}
+				ancestors = ancestors[:len(ancestors)-1]
 			}
 		}
 		if h, ok := t.handler.(*Router); ok {
@@ -339,6 +393,11 @@
 	Route   *Route
 	Handler http.Handler
 	Vars    map[string]string
+
+	// MatchErr is set to appropriate matching error
+	// It is set to ErrMethodMismatch if there is a mismatch in
+	// the request method and route method
+	MatchErr error
 }
 
 type contextKey int
@@ -380,28 +439,6 @@
 // Helpers
 // ----------------------------------------------------------------------------
 
-// getPath returns the escaped path if possible; doing what URL.EscapedPath()
-// which was added in go1.5 does
-func getPath(req *http.Request) string {
-	if req.RequestURI != "" {
-		// Extract the path from RequestURI (which is escaped unlike URL.Path)
-		// as detailed here as detailed in https://golang.org/pkg/net/url/#URL
-		// for < 1.5 server side workaround
-		// http://localhost/path/here?v=1 -> /path/here
-		path := req.RequestURI
-		path = strings.TrimPrefix(path, req.URL.Scheme+`://`)
-		path = strings.TrimPrefix(path, req.URL.Host)
-		if i := strings.LastIndex(path, "?"); i > -1 {
-			path = path[:i]
-		}
-		if i := strings.LastIndex(path, "#"); i > -1 {
-			path = path[:i]
-		}
-		return path
-	}
-	return req.URL.Path
-}
-
 // cleanPath returns the canonical path for p, eliminating . and .. elements.
 // Borrowed from the net/http package.
 func cleanPath(p string) string {
@@ -458,7 +495,7 @@
 	return m, nil
 }
 
-// mapFromPairsToRegex converts variadic string paramers to a
+// mapFromPairsToRegex converts variadic string parameters to a
 // string to regex map.
 func mapFromPairsToRegex(pairs ...string) (map[string]*regexp.Regexp, error) {
 	length, err := checkPairs(pairs...)
@@ -540,3 +577,12 @@
 	}
 	return true
 }
+
+// methodNotAllowed replies to the request with an HTTP status code 405.
+func methodNotAllowed(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusMethodNotAllowed)
+}
+
+// methodNotAllowedHandler returns a simple request handler
+// that replies to each request with a status code 405.
+func methodNotAllowedHandler() http.Handler { return http.HandlerFunc(methodNotAllowed) }
diff --git a/vendor/github.com/gorilla/mux/regexp.go b/vendor/github.com/gorilla/mux/regexp.go
index 0189ad3..2b57e56 100644
--- a/vendor/github.com/gorilla/mux/regexp.go
+++ b/vendor/github.com/gorilla/mux/regexp.go
@@ -14,6 +14,20 @@
 	"strings"
 )
 
+type routeRegexpOptions struct {
+	strictSlash    bool
+	useEncodedPath bool
+}
+
+type regexpType int
+
+const (
+	regexpTypePath   regexpType = 0
+	regexpTypeHost   regexpType = 1
+	regexpTypePrefix regexpType = 2
+	regexpTypeQuery  regexpType = 3
+)
+
 // newRouteRegexp parses a route template and returns a routeRegexp,
 // used to match a host, a path or a query string.
 //
@@ -24,7 +38,7 @@
 // Previously we accepted only Python-like identifiers for variable
 // names ([a-zA-Z_][a-zA-Z0-9_]*), but currently the only restriction is that
 // name and pattern can't be empty, and names can't contain a colon.
-func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash, useEncodedPath bool) (*routeRegexp, error) {
+func newRouteRegexp(tpl string, typ regexpType, options routeRegexpOptions) (*routeRegexp, error) {
 	// Check if it is well-formed.
 	idxs, errBraces := braceIndices(tpl)
 	if errBraces != nil {
@@ -34,19 +48,18 @@
 	template := tpl
 	// Now let's parse it.
 	defaultPattern := "[^/]+"
-	if matchQuery {
-		defaultPattern = "[^?&]*"
-	} else if matchHost {
+	if typ == regexpTypeQuery {
+		defaultPattern = ".*"
+	} else if typ == regexpTypeHost {
 		defaultPattern = "[^.]+"
-		matchPrefix = false
 	}
 	// Only match strict slash if not matching
-	if matchPrefix || matchHost || matchQuery {
-		strictSlash = false
+	if typ != regexpTypePath {
+		options.strictSlash = false
 	}
 	// Set a flag for strictSlash.
 	endSlash := false
-	if strictSlash && strings.HasSuffix(tpl, "/") {
+	if options.strictSlash && strings.HasSuffix(tpl, "/") {
 		tpl = tpl[:len(tpl)-1]
 		endSlash = true
 	}
@@ -88,16 +101,16 @@
 	// Add the remaining.
 	raw := tpl[end:]
 	pattern.WriteString(regexp.QuoteMeta(raw))
-	if strictSlash {
+	if options.strictSlash {
 		pattern.WriteString("[/]?")
 	}
-	if matchQuery {
+	if typ == regexpTypeQuery {
 		// Add the default pattern if the query value is empty
 		if queryVal := strings.SplitN(template, "=", 2)[1]; queryVal == "" {
 			pattern.WriteString(defaultPattern)
 		}
 	}
-	if !matchPrefix {
+	if typ != regexpTypePrefix {
 		pattern.WriteByte('$')
 	}
 	reverse.WriteString(raw)
@@ -118,15 +131,13 @@
 
 	// Done!
 	return &routeRegexp{
-		template:       template,
-		matchHost:      matchHost,
-		matchQuery:     matchQuery,
-		strictSlash:    strictSlash,
-		useEncodedPath: useEncodedPath,
-		regexp:         reg,
-		reverse:        reverse.String(),
-		varsN:          varsN,
-		varsR:          varsR,
+		template:   template,
+		regexpType: typ,
+		options:    options,
+		regexp:     reg,
+		reverse:    reverse.String(),
+		varsN:      varsN,
+		varsR:      varsR,
 	}, nil
 }
 
@@ -135,15 +146,10 @@
 type routeRegexp struct {
 	// The unmodified template.
 	template string
-	// True for host match, false for path or query string match.
-	matchHost bool
-	// True for query string match, false for path and host match.
-	matchQuery bool
-	// The strictSlash value defined on the route, but disabled if PathPrefix was used.
-	strictSlash bool
-	// Determines whether to use encoded path from getPath function or unencoded
-	// req.URL.Path for path matching
-	useEncodedPath bool
+	// The type of match
+	regexpType regexpType
+	// Options for matching
+	options routeRegexpOptions
 	// Expanded regexp.
 	regexp *regexp.Regexp
 	// Reverse template.
@@ -156,13 +162,13 @@
 
 // Match matches the regexp against the URL host or path.
 func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool {
-	if !r.matchHost {
-		if r.matchQuery {
+	if r.regexpType != regexpTypeHost {
+		if r.regexpType == regexpTypeQuery {
 			return r.matchQueryString(req)
 		}
 		path := req.URL.Path
-		if r.useEncodedPath {
-			path = getPath(req)
+		if r.options.useEncodedPath {
+			path = req.URL.EscapedPath()
 		}
 		return r.regexp.MatchString(path)
 	}
@@ -178,6 +184,9 @@
 		if !ok {
 			return "", fmt.Errorf("mux: missing route variable %q", v)
 		}
+		if r.regexpType == regexpTypeQuery {
+			value = url.QueryEscape(value)
+		}
 		urlValues[k] = value
 	}
 	rv := fmt.Sprintf(r.reverse, urlValues...)
@@ -200,7 +209,7 @@
 // For a URL with foo=bar&baz=ding, we return only the relevant key
 // value pair for the routeRegexp.
 func (r *routeRegexp) getURLQuery(req *http.Request) string {
-	if !r.matchQuery {
+	if r.regexpType != regexpTypeQuery {
 		return ""
 	}
 	templateKey := strings.SplitN(r.template, "=", 2)[0]
@@ -269,7 +278,7 @@
 	}
 	path := req.URL.Path
 	if r.useEncodedPath {
-		path = getPath(req)
+		path = req.URL.EscapedPath()
 	}
 	// Store path variables.
 	if v.path != nil {
@@ -277,7 +286,7 @@
 		if len(matches) > 0 {
 			extractVars(path, matches, v.path.varsN, m.Vars)
 			// Check if we should redirect.
-			if v.path.strictSlash {
+			if v.path.options.strictSlash {
 				p1 := strings.HasSuffix(path, "/")
 				p2 := strings.HasSuffix(v.path.template, "/")
 				if p1 != p2 {
diff --git a/vendor/github.com/gorilla/mux/route.go b/vendor/github.com/gorilla/mux/route.go
index 9221915..a591d73 100644
--- a/vendor/github.com/gorilla/mux/route.go
+++ b/vendor/github.com/gorilla/mux/route.go
@@ -31,6 +31,8 @@
 	skipClean bool
 	// If true, "/path/foo%2Fbar/to" will match the path "/path/{var}/to"
 	useEncodedPath bool
+	// The scheme used when building URLs.
+	buildScheme string
 	// If true, this route never matches: it is only used to build URLs.
 	buildOnly bool
 	// The name used to build URLs.
@@ -41,6 +43,8 @@
 	buildVarsFunc BuildVarsFunc
 }
 
+// SkipClean reports whether path cleaning is enabled for this route via
+// Router.SkipClean.
 func (r *Route) SkipClean() bool {
 	return r.skipClean
 }
@@ -50,12 +54,33 @@
 	if r.buildOnly || r.err != nil {
 		return false
 	}
+
+	var matchErr error
+
 	// Match everything.
 	for _, m := range r.matchers {
 		if matched := m.Match(req, match); !matched {
+			if _, ok := m.(methodMatcher); ok {
+				matchErr = ErrMethodMismatch
+				continue
+			}
+			matchErr = nil
 			return false
 		}
 	}
+
+	if matchErr != nil {
+		match.MatchErr = matchErr
+		return false
+	}
+
+	if match.MatchErr == ErrMethodMismatch {
+		// We found a route which matches request method, clear MatchErr
+		match.MatchErr = nil
+		// Then override the mis-matched handler
+		match.Handler = r.handler
+	}
+
 	// Yay, we have a match. Let's collect some info about it.
 	if match.Route == nil {
 		match.Route = r
@@ -66,6 +91,7 @@
 	if match.Vars == nil {
 		match.Vars = make(map[string]string)
 	}
+
 	// Set variables.
 	if r.regexp != nil {
 		r.regexp.setMatch(req, match, r)
@@ -147,20 +173,23 @@
 }
 
 // addRegexpMatcher adds a host or path matcher and builder to a route.
-func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery bool) error {
+func (r *Route) addRegexpMatcher(tpl string, typ regexpType) error {
 	if r.err != nil {
 		return r.err
 	}
 	r.regexp = r.getRegexpGroup()
-	if !matchHost && !matchQuery {
-		if tpl == "/" && (len(tpl) == 0 || tpl[0] != '/') {
+	if typ == regexpTypePath || typ == regexpTypePrefix {
+		if len(tpl) > 0 && tpl[0] != '/' {
 			return fmt.Errorf("mux: path must start with a slash, got %q", tpl)
 		}
 		if r.regexp.path != nil {
 			tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl
 		}
 	}
-	rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash, r.useEncodedPath)
+	rr, err := newRouteRegexp(tpl, typ, routeRegexpOptions{
+		strictSlash:    r.strictSlash,
+		useEncodedPath: r.useEncodedPath,
+	})
 	if err != nil {
 		return err
 	}
@@ -169,7 +198,7 @@
 			return err
 		}
 	}
-	if matchHost {
+	if typ == regexpTypeHost {
 		if r.regexp.path != nil {
 			if err = uniqueVars(rr.varsN, r.regexp.path.varsN); err != nil {
 				return err
@@ -182,7 +211,7 @@
 				return err
 			}
 		}
-		if matchQuery {
+		if typ == regexpTypeQuery {
 			r.regexp.queries = append(r.regexp.queries, rr)
 		} else {
 			r.regexp.path = rr
@@ -234,7 +263,8 @@
 //               "X-Requested-With", "XMLHttpRequest")
 //
 // The above route will only match if both the request header matches both regular expressions.
-// It the value is an empty string, it will match any value if the key is set.
+// If the value is an empty string, it will match any value if the key is set.
+// Use the start and end of string anchors (^ and $) to match an exact value.
 func (r *Route) HeadersRegexp(pairs ...string) *Route {
 	if r.err == nil {
 		var headers map[string]*regexp.Regexp
@@ -264,7 +294,7 @@
 // Variable names must be unique in a given route. They can be retrieved
 // calling mux.Vars(request).
 func (r *Route) Host(tpl string) *Route {
-	r.err = r.addRegexpMatcher(tpl, true, false, false)
+	r.err = r.addRegexpMatcher(tpl, regexpTypeHost)
 	return r
 }
 
@@ -324,7 +354,7 @@
 // Variable names must be unique in a given route. They can be retrieved
 // calling mux.Vars(request).
 func (r *Route) Path(tpl string) *Route {
-	r.err = r.addRegexpMatcher(tpl, false, false, false)
+	r.err = r.addRegexpMatcher(tpl, regexpTypePath)
 	return r
 }
 
@@ -340,7 +370,7 @@
 // Also note that the setting of Router.StrictSlash() has no effect on routes
 // with a PathPrefix matcher.
 func (r *Route) PathPrefix(tpl string) *Route {
-	r.err = r.addRegexpMatcher(tpl, false, true, false)
+	r.err = r.addRegexpMatcher(tpl, regexpTypePrefix)
 	return r
 }
 
@@ -371,7 +401,7 @@
 		return nil
 	}
 	for i := 0; i < length; i += 2 {
-		if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, false, true); r.err != nil {
+		if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], regexpTypeQuery); r.err != nil {
 			return r
 		}
 	}
@@ -394,6 +424,9 @@
 	for k, v := range schemes {
 		schemes[k] = strings.ToLower(v)
 	}
+	if r.buildScheme == "" && len(schemes) > 0 {
+		r.buildScheme = schemes[0]
+	}
 	return r.addMatcher(schemeMatcher(schemes))
 }
 
@@ -477,22 +510,33 @@
 		return nil, err
 	}
 	var scheme, host, path string
+	queries := make([]string, 0, len(r.regexp.queries))
 	if r.regexp.host != nil {
-		// Set a default scheme.
-		scheme = "http"
 		if host, err = r.regexp.host.url(values); err != nil {
 			return nil, err
 		}
+		scheme = "http"
+		if s := r.getBuildScheme(); s != "" {
+			scheme = s
+		}
 	}
 	if r.regexp.path != nil {
 		if path, err = r.regexp.path.url(values); err != nil {
 			return nil, err
 		}
 	}
+	for _, q := range r.regexp.queries {
+		var query string
+		if query, err = q.url(values); err != nil {
+			return nil, err
+		}
+		queries = append(queries, query)
+	}
 	return &url.URL{
-		Scheme: scheme,
-		Host:   host,
-		Path:   path,
+		Scheme:   scheme,
+		Host:     host,
+		Path:     path,
+		RawQuery: strings.Join(queries, "&"),
 	}, nil
 }
 
@@ -514,10 +558,14 @@
 	if err != nil {
 		return nil, err
 	}
-	return &url.URL{
+	u := &url.URL{
 		Scheme: "http",
 		Host:   host,
-	}, nil
+	}
+	if s := r.getBuildScheme(); s != "" {
+		u.Scheme = s
+	}
+	return u, nil
 }
 
 // URLPath builds the path part of the URL for a route. See Route.URL().
@@ -558,6 +606,74 @@
 	return r.regexp.path.template, nil
 }
 
+// GetPathRegexp returns the expanded regular expression used to match route path.
+// This is useful for building simple REST API documentation and for instrumentation
+// against third-party services.
+// An error will be returned if the route does not define a path.
+func (r *Route) GetPathRegexp() (string, error) {
+	if r.err != nil {
+		return "", r.err
+	}
+	if r.regexp == nil || r.regexp.path == nil {
+		return "", errors.New("mux: route does not have a path")
+	}
+	return r.regexp.path.regexp.String(), nil
+}
+
+// GetQueriesRegexp returns the expanded regular expressions used to match the
+// route queries.
+// This is useful for building simple REST API documentation and for instrumentation
+// against third-party services.
+// An error will be returned if the route does not have queries.
+func (r *Route) GetQueriesRegexp() ([]string, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	if r.regexp == nil || r.regexp.queries == nil {
+		return nil, errors.New("mux: route doesn't have queries")
+	}
+	var queries []string
+	for _, query := range r.regexp.queries {
+		queries = append(queries, query.regexp.String())
+	}
+	return queries, nil
+}
+
+// GetQueriesTemplates returns the templates used to build the
+// query matching.
+// This is useful for building simple REST API documentation and for instrumentation
+// against third-party services.
+// An error will be returned if the route does not define queries.
+func (r *Route) GetQueriesTemplates() ([]string, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	if r.regexp == nil || r.regexp.queries == nil {
+		return nil, errors.New("mux: route doesn't have queries")
+	}
+	var queries []string
+	for _, query := range r.regexp.queries {
+		queries = append(queries, query.template)
+	}
+	return queries, nil
+}
+
+// GetMethods returns the methods the route matches against
+// This is useful for building simple REST API documentation and for instrumentation
+// against third-party services.
+// An error will be returned if route does not have methods.
+func (r *Route) GetMethods() ([]string, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	for _, m := range r.matchers {
+		if methods, ok := m.(methodMatcher); ok {
+			return []string(methods), nil
+		}
+	}
+	return nil, errors.New("mux: route doesn't have methods")
+}
+
 // GetHostTemplate returns the template used to build the
 // route match.
 // This is useful for building simple REST API documentation and for instrumentation
@@ -599,11 +715,22 @@
 
 // parentRoute allows routes to know about parent host and path definitions.
 type parentRoute interface {
+	getBuildScheme() string
 	getNamedRoutes() map[string]*Route
 	getRegexpGroup() *routeRegexpGroup
 	buildVars(map[string]string) map[string]string
 }
 
+func (r *Route) getBuildScheme() string {
+	if r.buildScheme != "" {
+		return r.buildScheme
+	}
+	if r.parent != nil {
+		return r.parent.getBuildScheme()
+	}
+	return ""
+}
+
 // getNamedRoutes returns the map where named routes are registered.
 func (r *Route) getNamedRoutes() map[string]*Route {
 	if r.parent == nil {
diff --git a/vendor/github.com/gorilla/mux/test_helpers.go b/vendor/github.com/gorilla/mux/test_helpers.go
new file mode 100644
index 0000000..32ecffd
--- /dev/null
+++ b/vendor/github.com/gorilla/mux/test_helpers.go
@@ -0,0 +1,19 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package mux
+
+import "net/http"
+
+// SetURLVars sets the URL variables for the given request, to be accessed via
+// mux.Vars for testing route behaviour. Arguments are not modified, a shallow
+// copy is returned.
+//
+// This API should only be used for testing purposes; it provides a way to
+// inject variables into the request context. Alternatively, URL variables
+// can be set by making a route that captures the required variables,
+// starting a server and sending the request to that server.
+func SetURLVars(r *http.Request, val map[string]string) *http.Request {
+	return setVars(r, val)
+}
diff --git a/vendor/github.com/kelseyhightower/envconfig/.travis.yml b/vendor/github.com/kelseyhightower/envconfig/.travis.yml
new file mode 100644
index 0000000..e15301a
--- /dev/null
+++ b/vendor/github.com/kelseyhightower/envconfig/.travis.yml
@@ -0,0 +1,7 @@
+language: go
+
+go:
+  - 1.4
+  - 1.5
+  - 1.6
+  - tip
diff --git a/vendor/github.com/kelseyhightower/envconfig/README.md b/vendor/github.com/kelseyhightower/envconfig/README.md
index 09de74b..b6c65a8 100644
--- a/vendor/github.com/kelseyhightower/envconfig/README.md
+++ b/vendor/github.com/kelseyhightower/envconfig/README.md
@@ -21,6 +21,7 @@
 export MYAPP_RATE="0.5"
 export MYAPP_TIMEOUT="3m"
 export MYAPP_USERS="rob,ken,robert"
+export MYAPP_COLORCODES="red:1,green:2,blue:3"
 ```
 
 Write some code:
@@ -37,12 +38,13 @@
 )
 
 type Specification struct {
-    Debug   bool
-    Port    int
-    User    string
-    Users   []string
-    Rate    float32
-    Timeout time.Duration
+    Debug       bool
+    Port        int
+    User        string
+    Users       []string
+    Rate        float32
+    Timeout     time.Duration
+    ColorCodes  map[string]int
 }
 
 func main() {
@@ -61,6 +63,11 @@
     for _, u := range s.Users {
         fmt.Printf("  %s\n", u)
     }
+
+    fmt.Println("Color codes:")
+    for k, v := range s.ColorCodes {
+        fmt.Printf("  %s: %d\n", k, v)
+    }
 }
 ```
 
@@ -76,6 +83,10 @@
   rob
   ken
   robert
+Color codes:
+  red: 1
+  green: 2
+  blue: 3
 ```
 
 ## Struct Tag Support
@@ -145,6 +156,8 @@
   * int8, int16, int32, int64
   * bool
   * float32, float64
+  * slices of any supported type
+  * maps (keys and values of any supported type)
   * [encoding.TextUnmarshaler](https://golang.org/pkg/encoding/#TextUnmarshaler)
 
 Embedded structs using these fields are also supported.
diff --git a/vendor/github.com/kelseyhightower/envconfig/envconfig.go b/vendor/github.com/kelseyhightower/envconfig/envconfig.go
index 3ad5e7d..892d746 100644
--- a/vendor/github.com/kelseyhightower/envconfig/envconfig.go
+++ b/vendor/github.com/kelseyhightower/envconfig/envconfig.go
@@ -265,6 +265,27 @@
 			}
 		}
 		field.Set(sl)
+	case reflect.Map:
+		pairs := strings.Split(value, ",")
+		mp := reflect.MakeMap(typ)
+		for _, pair := range pairs {
+			kvpair := strings.Split(pair, ":")
+			if len(kvpair) != 2 {
+				return fmt.Errorf("invalid map item: %q", pair)
+			}
+			k := reflect.New(typ.Key()).Elem()
+			err := processField(kvpair[0], k)
+			if err != nil {
+				return err
+			}
+			v := reflect.New(typ.Elem()).Elem()
+			err = processField(kvpair[1], v)
+			if err != nil {
+				return err
+			}
+			mp.SetMapIndex(k, v)
+		}
+		field.Set(mp)
 	}
 
 	return nil
diff --git a/vendor/github.com/kelseyhightower/envconfig/usage.go b/vendor/github.com/kelseyhightower/envconfig/usage.go
index 4870237..1846353 100644
--- a/vendor/github.com/kelseyhightower/envconfig/usage.go
+++ b/vendor/github.com/kelseyhightower/envconfig/usage.go
@@ -56,6 +56,12 @@
 	switch t.Kind() {
 	case reflect.Array, reflect.Slice:
 		return fmt.Sprintf("Comma-separated list of %s", toTypeDescription(t.Elem()))
+	case reflect.Map:
+		return fmt.Sprintf(
+			"Comma-separated list of %s:%s pairs",
+			toTypeDescription(t.Key()),
+			toTypeDescription(t.Elem()),
+		)
 	case reflect.Ptr:
 		return toTypeDescription(t.Elem())
 	case reflect.Struct:
diff --git a/vendor/github.com/konsorten/go-windows-terminal-sequences/LICENSE b/vendor/github.com/konsorten/go-windows-terminal-sequences/LICENSE
new file mode 100644
index 0000000..14127cd
--- /dev/null
+++ b/vendor/github.com/konsorten/go-windows-terminal-sequences/LICENSE
@@ -0,0 +1,9 @@
+(The MIT License)
+
+Copyright (c) 2017 marvin + konsorten GmbH (open-source@konsorten.de)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/konsorten/go-windows-terminal-sequences/README.md b/vendor/github.com/konsorten/go-windows-terminal-sequences/README.md
new file mode 100644
index 0000000..949b77e
--- /dev/null
+++ b/vendor/github.com/konsorten/go-windows-terminal-sequences/README.md
@@ -0,0 +1,40 @@
+# Windows Terminal Sequences
+
+This library allow for enabling Windows terminal color support for Go.
+
+See [Console Virtual Terminal Sequences](https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences) for details.
+
+## Usage
+
+```go
+import (
+	"syscall"
+	
+	sequences "github.com/konsorten/go-windows-terminal-sequences"
+)
+
+func main() {
+	sequences.EnableVirtualTerminalProcessing(syscall.Stdout, true)
+}
+
+```
+
+## Authors
+
+The tool is sponsored by the [marvin + konsorten GmbH](http://www.konsorten.de).
+
+We thank all the authors who provided code to this library:
+
+* Felix Kollmann
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2018 marvin + konsorten GmbH (open-source@konsorten.de)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/konsorten/go-windows-terminal-sequences/go.mod b/vendor/github.com/konsorten/go-windows-terminal-sequences/go.mod
new file mode 100644
index 0000000..716c613
--- /dev/null
+++ b/vendor/github.com/konsorten/go-windows-terminal-sequences/go.mod
@@ -0,0 +1 @@
+module github.com/konsorten/go-windows-terminal-sequences
diff --git a/vendor/github.com/konsorten/go-windows-terminal-sequences/sequences.go b/vendor/github.com/konsorten/go-windows-terminal-sequences/sequences.go
new file mode 100644
index 0000000..ef18d8f
--- /dev/null
+++ b/vendor/github.com/konsorten/go-windows-terminal-sequences/sequences.go
@@ -0,0 +1,36 @@
+// +build windows
+
+package sequences
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+var (
+	kernel32Dll    *syscall.LazyDLL  = syscall.NewLazyDLL("Kernel32.dll")
+	setConsoleMode *syscall.LazyProc = kernel32Dll.NewProc("SetConsoleMode")
+)
+
+func EnableVirtualTerminalProcessing(stream syscall.Handle, enable bool) error {
+	const ENABLE_VIRTUAL_TERMINAL_PROCESSING uint32 = 0x4
+
+	var mode uint32
+	err := syscall.GetConsoleMode(syscall.Stdout, &mode)
+	if err != nil {
+		return err
+	}
+
+	if enable {
+		mode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING
+	} else {
+		mode &^= ENABLE_VIRTUAL_TERMINAL_PROCESSING
+	}
+
+	ret, _, err := setConsoleMode.Call(uintptr(unsafe.Pointer(stream)), uintptr(mode))
+	if ret == 0 {
+		return err
+	}
+
+	return nil
+}