Prevents packstack to create user/tenant called undef

Change-Id: I06935da589afcd841656855d8ba6c6cb39d90fdf
Fixed: rhbz#1114590
Signed-off-by: Gael Chamoulaud <gchamoul@redhat.com>
Stop firewalld before service iptables and not class firewall

Seems that puppet fails to comprehend that service iptables is from
class firewall and stops firewalld after starting iptables. We solve
this by setting before => Service['iptables']

Change-Id: I964998fe70794efb1d9c7b235a5f1f4aece24aad
Closes-Bug: rhbz#1114121
Merge "Prevents packstack to create user/tenant called undef"
Compare CONFIG_PROVISION_ALL_IN_ONE_OVS_BRIDGE to 'false'

CONFIG_PROVISION_ALL_IN_ONE_OVS_BRIDGE value is changed to 'true' if it
is set o 'y' and set to 'false' when original value was 'n'. But
comparision is still done according 'n'.

Change-Id: I6ed0757b97c36cff380989263043757354c62ad8
Restart libvirt only when deploying nova network on compute

Also ensure nova network does have nova_common classes and
make sure all nodes can connect to mysql.

Change-Id: I7adbdb08ad9c27575d8832feda8402450768ed92
Closes-Bug: rhbz#1114930
Merge "Restart libvirt only when deploying nova network on compute"