Updating to Autobahn python version 0.8.13 to get http long poll endpoints.

Change-Id: Ic484a5d2df36508faf9fc3019fb32b9e9dfb153e
Merge topic 'autobahn-update-http-endpoints' into master

38ee5798 Updating to Autobahn python version 0.8.13 to get http long poll endpoints.