Updated openstack/openstack
Project: openstack/nova  3246cc4a16bbe1e0367c82eb9948aeb77158898e
null
Update version aliases for rpc version control

Now that Icehouse has been branched, add aliases for the rpc version
implemented by Icehouse.  These aliases can be used in the
configuration options for doing outbound rpc version control.

DocImpact - 'icehouse' is now a valid value to provide to all of the
options in the [upgrade_levels] section of nova.conf.

Closes-Bug: #1309334
Partial-Bug: #1309324
Change-Id: Iad96d8ba7e8e85346fe0b3275f220314bf76a7e3