[VOL-2235] Mocks and interfaces for rw-core

This update consists of mocks that are used by the rw-core
during unit testing.  It also includes interfaces used for unit
tests.

Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/github.com/soheilhy/cmux/.travis.yml b/vendor/github.com/soheilhy/cmux/.travis.yml
new file mode 100644
index 0000000..4bc48e0
--- /dev/null
+++ b/vendor/github.com/soheilhy/cmux/.travis.yml
@@ -0,0 +1,29 @@
+language: go
+
+go:
+  - 1.6
+  - 1.7
+  - 1.8
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+gobuild_args: -race
+
+before_install:
+  - if [[ $TRAVIS_GO_VERSION == 1.6* ]]; then go get -u github.com/kisielk/errcheck; fi
+  - if [[ $TRAVIS_GO_VERSION == 1.6* ]]; then go get -u github.com/golang/lint/golint; fi
+
+before_script:
+  - '! gofmt -s -l . | read'
+  - echo $TRAVIS_GO_VERSION
+  - if [[ $TRAVIS_GO_VERSION == 1.6* ]]; then golint ./...; fi
+  - if [[ $TRAVIS_GO_VERSION == 1.6* ]]; then errcheck ./...; fi
+  - if [[ $TRAVIS_GO_VERSION == 1.6* ]]; then go tool vet .; fi
+  - if [[ $TRAVIS_GO_VERSION == 1.6* ]]; then go tool vet --shadow .; fi
+
+script:
+  - go test -bench . -v ./...
+  - go test -race -bench . -v ./...