Stop running setup_devel for Ryu

It doesn't work here for various reasons.
- Ryu's setup.py is incompatible with global requirements
- This code is called before install_infra.

Ryu is not a part of OpenStack anyway.

Closes-Bug: 1287569
Change-Id: I01a942411f7d06bdf8f1fec5d1a0bc319560f329
Do not restart libvirt if n-cpu is disabled

If this service is disable in localrc, libvirt does not installed at all,
and should not be restarted.

Change-Id: Iaf482d4a82a26546c25249b3e32c7e629d862a1b
Closes: bug 1288236
remove distros that are out of support by their upstream

raring EOL was - 27 Jan 2014
f18 EOL was - 14 Jan 2014
opensuse 12.2 was - 15 Jan 2014

if their upstream isn't going to support them, we shouldn't be
in devstack.

this additionally leaves us in an interesting situation that there
is no longer *any* opensuse version listed as supported. if the
opensuse community doesn't step up here we should probably look
at removing it.

Change-Id: Ibb883930b430477dfd3b5126c5db04f95a50d3a7
Make mongo install for ceilometer NOPRIME

mongodb packages are missing on some platforms, so we switch to a
manual install.  Also gate the mongo call in cleanup

Change-Id: I1755e461c66be30da3db2a0994f908503c4c38ea
put libvirt debug behind a flag

only turn on the libvirt debugging if we really need it, which
we could control in the gate via devstack-gate.

Change-Id: I5e6d41d5333357608ab6a614610c060400f70a10
Install script for One Convergence Neutron plugin.

Change-Id: I1dcc625a7c986e7533820b01af9eee5b8addcffe
Implements: install for blueprint oc-nvsd-neutron-plugin
Merge "put libvirt debug behind a flag"
Merge "Stop running setup_devel for Ryu"
Merge "remove distros that are out of support by their upstream"
Merge "Install script for One Convergence Neutron plugin."
Merge "Make mongo install for ceilometer NOPRIME"
Merge "Do not restart libvirt if n-cpu is disabled"