Implements: blueprint add-manila-to-gerritbot

Adds the #openstack-manila channel and configs various events for gerritbot to direct there

Patch Set 4 corrects erroneous reference to github.com/openstack with stackforge
Patch Set 5 removes errant spaces... perhaps sleep is in order

Author: Rob Esker <esker@me.com>

Change-Id: Ic886904c72781f118ffb5b7cbae2976c77ec34b7
Merge "Implements: blueprint add-manila-to-gerritbot"