Configure libvirt migration on the RedHat and Debian-Ubuntu

It introduces Red Hat support and fix Ubuntu / Debian libvirt
configuration to support live migrations when using libvirt nova driver.

Change-Id: I72f03316e79ce3b83959def79b86056c934ce62d
Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
Make parameter doc RDoc compatible

This patch fixes the parameter documentation in
generic_service, network, objectstore, params,
qpid and quota to conform with the style guide and
support autogenerating parameter documentation.

Change-Id: I43faab3c59a25bf233e985d75f906a4ba026f440
Merge "Make parameter doc RDoc compatible"
Merge "Configure libvirt migration on the RedHat and Debian-Ubuntu"