added protocol buffer tcp netty endpoint
minor updates to protobuf protocol
Merge branch 'master' into protobuf

Conflicts:
	sensormix-mockep-app/src/main/java/com/google/developers/gdgfirenze/mockep/Launcher.java
Merge branch 'master' into protobuf
supporting integration of protocol buffer messages from ios
added support for protobuf entry point to integration-bundle