Switch config to use Ironic driver from Nova's tree

Change the Nova config to use the IronicDriver from the Nova tree,
so that the copy of this driver in Ironic's tree may be deleted.

Also removes the unneeded [ironic] "sql_connection" config parameter
which was cruft copied from the nova_bm configuration in commit
06fb29c66124b6c753fdd262eb262043b4551298

Change-Id: I35473b54d760bfa7395decbe6b086f64db60ab10
Set allow_migrate_to_same_host as True by default

After OpenStack was installed with devstack on a single node, cold
migration always failed because the default value of
allow_migrate_to_same_host is False. This means that devstack do not
support cold migrate a VM to a same host by default.

Normally, a developer will set up OpenStack with devstack on a single
node, so it is better that we change this value to True to enable
cold migration with a single node after installed by devstack.

Change-Id: I961395f1c79d9600917b6186964c13c92a8a6266
neutron: use non-deprecated notification_driver

Neutron is now using oslo.messaging so it should be
using 'messaging' as its notification driver and not the now deprecated
full python path to the oslo-incubator notification driver.

Change-Id: Ie4a4020e59473473ad62059c66507f5b73b93375
The python-qpid packages must be installed when qpidd is configured

The python-qpid package is available for Ubuntu trusty, precise, and
all the supported RHEL based platforms.  This package is necessary if
qpidd is configured as the RPC backend.  It is the client API used to
talk to the broker, and must be installed on each system that
communicates with the broker.

Change-Id: I635d3e857aa4b769a80cb7cde405cfd6cae44d32
Add RBD as a known store

Adding RBD as a known store in the glance-api.conf file allows us to use
Ceph as a backend for Glance.

Closes-Bug: 1369578

Change-Id: I02cbafa68ca3293cedc9fef7535e79930cc4ee5c
Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Merge "The python-qpid packages must be installed when qpidd is configured"
Merge "Add RBD as a known store"
Merge "neutron: use non-deprecated notification_driver"
Merge "Switch config to use Ironic driver from Nova's tree"
Merge "Set allow_migrate_to_same_host as True by default"