Use apache config templates from local tree
Use apache config templates from local tree

Now that the apache job is fixed, change the plugin to use
apache config templates from local tree. Else, it would
not work when the devstack tree code is removed.

Change-Id: I9a8627ad85821001968948dd7798999c8db14023

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