Release 3.0.0

Updated Modulefile for release 3.0.0

Change-Id: Ie064b8d1de327b68592e1ac443d7259772df47f6
Configure security group when using ML2 plugin

Since the ML2 plugin can concurrently support different L2 agents (or
other mechanisms) with different configurations, Neutron developpers recommend
setting firewall_driver flag in ml2 configuration.

Change-Id: I62d0d1b2aac88a11e5f3e80e98953c71cfc98629
Closes-bug: #1262678
Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
(cherry picked from commit 59cf3eb0a22c220509ec80c345bbf064f85374ad)
Merge "Release 3.0.0" into stable/havana
Merge "Configure security group when using ML2 plugin" into stable/havana
Ensure ML2 plugin package is installed

Some platforms have a package for ML2 plugin.

This change makes sure is it installed for those platforms when
ML2 plugin is used and configured.

Change-Id: I24c8eb7d17a462b63d2023027c90da7f876f7503
Closes-bug: #1264205
(cherry picked from commit b68158470abaeeb4431fc683994f2b7f8c71ea38)