controller_common: fixed rabbitmq provider parameters handling for glance
Merge pull request #331 from gabrielecerami/glance-rabbitmq-missing-parameters

WIP: controller_common: fixed rabbitmq provider parameters handling for glanc...
Add support to enable ML2 Cisco Nexus plugin
Merge pull request #311 from pkilambi/master

Add support to enable ML2 Cisco Nexus plugin