Adding serial console support
Adding serial console support

The nova serial console feature uses portnumber 6083 by default.
this port needs to be accessable for client programs that want
to connect to the serial console as wel as the horizon
webinterface to connect to the serial console.

The added definitions add this port as a group_var

Change-Id: I30f91b20b195e578647ea2a0cfe087bdac2b5b6b

stackforge/os-ansible-deployment,cfarquhar/openstack-ansible,yanyao/openstack-ansible,bunchc/openstack-ansible,bunchc/openstack-ansible,stackforge/os-ansible-deployment,openstack/openstack-ansible,cfarquhar/openstack-ansible,yanyao/openstack-ansible,openstack/openstack-ansible