Now using ini_file to parse nova.conf

nova.conf now contains sections, one of which keystone_authtoken
contains the keystone credentials. This commit makes use of
a nova_config that was rewritten to use ini_file. Packstack no
longer touches api-paste.ini

The commit to update the nova puppet module was cherry picked from
https://github.com/Mirantis/puppetlabs-nova
and written by
Vladimir Kuklin <vkuklin@mirantis.com>
https://github.com/aglarendil

This is the nova part of
https://bugzilla.redhat.com/show_bug.cgi?id=888725
cinder next

Change-Id: I9795e3803fc5511128a279f99a4a750f08867b8a
Use cinder_config for cinder keystone auth credentials

No longer placing values in api-paste.ini

Cinder part of this bug
https://bugzilla.redhat.com/show_bug.cgi?id=888725

Change-Id: I0167fe0df534514d617564e70f23805a86587945
Ensure Firewall changes happen before nova services start

preventing a clash with rules being set by nova-compute and nova-network
https://bugzilla.redhat.com/show_bug.cgi?id=908695

Change-Id: I84c13f91d51ea114a868f3bb5779d9a5e80b817e
Only install qemu workaround on RHEL 6.3

This was entered as a workaround for libvirt on RHEL 6.3 and is
no longer needed on RHEL 6.4
https://bugzilla.redhat.com/show_bug.cgi?id=912702

Change-Id: I1338bfd6fda23e9326f244d5f98329e761d8f363
Tune the host with a virtual hosts profile

https://bugzilla.redhat.com/show_bug.cgi?id=865347

Change-Id: Ib5924bb4f603f33020eb7ee1136504df605702e9
Merge "Only install qemu workaround on RHEL 6.3" into folsom
Merge "Tune the host with a virtual hosts profile" into folsom
Improve support for RHEL derivatives

Using $osfamily instead of $operatingsystem to support (more)
derivatives. Unfortunately, $osfamily includes not only RHEL
derivatives but also Fedora. Therefore, further differentiation
by $operatingsystem will still be necessary sometimes.

Change-Id: I61106d9a68ae0dd5689e44d0ab860d445a44633b
Merge "Ensure Firewall changes happen before nova services start" into folsom
Merge "Use cinder_config for cinder keystone auth credentials" into folsom