Fix lp727225 by adding support for personality files to the openstack api.
Fix lp727225 by adding support for personality files to the openstack api.

Description:

This merge adds support for personality files to the openstack api. It leverages previous work which added this functionality to the compute api, compute manager, and xen api.
openstack-attic/melange,rajarammallya/melange,rajarammallya/melange,rajarammallya/melange,openstack-attic/melange,rackerlabs/melange,openstack-attic/melange,rackerlabs/melange,rackerlabs/melange