[HA BUGFIX] - We were missing the qpid port setting for Neutron.
[HA BUGFIX] Neutron url config updates.

We missed setting the correct connect url in a couple config files on both
controller and compute nodes.
Compute param change.

Make the params more clear, since they now need to be used with both HA and
non-HA controller setups.  This nets in:
- controller_priv_host -> glance_host
- controller_pub_host -> nova_host
- Added neutron_host
- Added auth_host
Merge pull request #221 from jguiditta/more_neutron_fixes

More neutron fixes