basic work on getting trove installed properly.
VXLAN support is broken right now in RDO. Temporary fix to replace the broken ovs_lib.py with one that disables a broken check.
enable vxlan and gluster for cinder.
added Rob Ruma
fix variable substitution
add in a role for building out sahara
add in swift, and specify the specific device to use.
don't use gluster for swift
only one proxy node supported right now
some untested additional tasks to the trove role
more tasks for sahara build, untested
updated site file