VOL-1460 Updated core to use voltha-protos instead of local protos
Moved protos to python directory in order to maintain functionaly of containers built there.
Added capability to do local builds of protos
Added instructions on running dep ensure for getting protos.
Updated github.com/golang/protobuf version to v1.3.1

Change-Id: Ia6ef55f07f0d5dcb5b750d7c37b21b71db85bfc4
diff --git a/python/adapters/openolt/main.py b/python/adapters/openolt/main.py
index b591ea6..273ff13 100755
--- a/python/adapters/openolt/main.py
+++ b/python/adapters/openolt/main.py
@@ -381,8 +381,10 @@
                     # TODO: Add KV Store object reference
                     kv_store=self.args.backend,
                     default_topic=self.args.name,
+		    group_id_prefix=self.args.instance_id,
                     # Needs to assign a real class
                     target_cls=openolt_request_handler
+
                 )
             ).start()