BZ #1056055 --  [RFE] create cinder-volumes VG backed by a loopback file

https://bugzilla.redhat.com/show_bug.cgi?id=1056055

The default behavior most customers expect for small to medium installations
is to run cinder-volume on the controller node. Packstack does this but
Foreman only allows a dedicated storage backend backed by iSCSI or RHS.
This patch deploys cinder-volume on the Nova or Neutron controller node if
cinder_backend_{iscsi,gluster} are both set to false. It will detect a VG
named cinder-volumes (whether backed by an iSCSI target or loopback device)
and share it via tgtd. The user must create the VG, which is also the case
with the cinder_backend_iscsi parameter for the LVM backend storage group. In
a sense this patch replicates functionality customers expect from packstack.
I tested it against the RHEL OSP 01.31.2014-1 puddle for both iSCSI and LVM
bakced Cinder from the controller node.
BZ #1056383 - Foreman Controller's swift proxy no longer runs ...

https://bugzilla.redhat.com/show_bug.cgi?id=1056383

Build the ringbuilder files on the proxy if no devices exist on its
ring files yet.
BZ #1049633 - Foreman should support VXLAN

https://bugzilla.redhat.com/show_bug.cgi?id=1049633

A couple of the variables inside the compute and networker classes were missing
the 'ovs_' part of the param name.
Merge pull request #117 from jliberma/bz1056055

BZ #1056055 --  [RFE] create cinder-volumes VG backed by a loopback file
Merge pull request #125 from jguiditta/vxlan_param_fix

BZ #1049633 - Foreman should support VXLAN
Merge pull request #114 from cwolferh/bz1056383_swift_ringbuilder_on_proxy

 BZ #1056383 - Foreman Controller's swift proxy no longer runs ...
BZ #998599 - Add options for SSL support using files or FreeIPA

https://bugzilla.redhat.com/show_bug.cgi?id=998599

If ssl and freeipa are true then certificates are obtained using
certmonger.

If ssl is true and freeipa is false then the the mysql and qpid
certificates and keys need to be passed in as arguments.

Horizon is configured to use ssl on the public interface FQDN if
ssl is true.

Secure qpid and mysql with SSL for nova, keystone, glance,
ceilometer, cinder and heat.

The following Foreman hostgroups support SSL:

Compute (Neutron)
Compute (Nova Network)
Controller (Neutron)
Controller (Nova Network)
LVM Block Storage
Neutron Networker