Use common function for logging with devstack
Use common function for logging with devstack

Now that sevices run with systemd at the gate, use the common
function to make it compatible(i.e colorized_logging).

Change-Id: Ieb65618c1bcda3f56201ba3d3c49f6ef1c02c650

noironetworks/heat,noironetworks/heat,openstack/heat,openstack/heat