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/docker/Dockerfile.envoy b/docker/Dockerfile.envoy
index 7049fc9..afe1977 100644
--- a/docker/Dockerfile.envoy
+++ b/docker/Dockerfile.envoy
@@ -1,10 +1,10 @@
-FROM lyft/envoy:092f01381467dfc3324e5e9528c67ee5d65744fd
+FROM lyft/envoy:29361deae91575a1d46c7a21e913f19e75622ebe
 
 RUN apt-get update && apt-get -q install -y \
     curl
-ADD envoy/front-proxy /envoy/
-ADD envoy/proto.pb /envoy/
-ADD pki /envoy/
-ADD envoy/go/envoyd/envoyd /usr/local/bin
+COPY envoy/front-proxy /envoy/
+COPY envoy/proto.pb /envoy/
+COPY pki /envoy/
+COPY envoy/go/envoyd/envoyd /usr/local/bin
 
 CMD /usr/local/bin/envoy -c /envoy/front-proxy/voltha-grpc-proxy.json