This update contains several changes
- Used a more recent commit of envoy specifically the one right before
  they broke it until the envoy team fixes the issue.
- Exposed envoy's admin interfacet to enable the gathering of NBI
  activity stats from the cluster.
- Removed some unncessary filters from Envoy to reduce the size of the
  config file and make it easier to understand.
- Removed the envoy directory and the mount thereof because everything
  now comes packaged in the containter.
- Fixed a bug int the cluster VM Vagrantfile that was causing kernel
  panics on some architectures.
- Added a log collection script to facilitate problem reporting.
- Removed the nginx directory from the install since nginx isn't being
  used in production.

Change-Id: Ifc73a4e177d0a2ac9c9d373d936988fa17d586d2
diff --git a/Makefile b/Makefile
index ef77149..7f64095 100644
--- a/Makefile
+++ b/Makefile
@@ -215,7 +215,7 @@
 	docker pull zookeeper:latest
 	docker pull nginx:latest
 	docker pull portainer/portainer:latest
-	docker pull lyft/envoy:092f01381467dfc3324e5e9528c67ee5d65744fd
+	docker pull lyft/envoy:29361deae91575a1d46c7a21e913f19e75622ebe
 	docker pull registry:2
 	docker pull kamon/grafana_graphite:latest