1161690 - Add release note for RabbitMQ support.

https://bugzilla.redhat.com/show_bug.cgi?id=1161690
1111261 - document single event listener retrieval
1081534 - Added /v2 and trailing / to the permissions docs
Merge branch '2.4-testing' into 2.4-dev
Merge branch '2.4-dev' into 2.5-testing
Merge branch '2.5-testing' into 2.5-dev
Added a note to troubleshooting guide about resource names in permissions
Merge pull request #1325 from dkliban/1081534

1081534 - Added /v2 and trailing / to the permissions docs
Merge branch '2.4-testing' into 2.4-dev
Merge branch '2.4-dev' into 2.5-testing
Merge branch '2.5-testing' into 2.5-dev
Merge branch '1161690' into 2.5-dev
Merge branch '2.5-dev'