BZ:1080369 - Workaround to patch provision_700.py

Bug: 1080369 prevents multinode installation.
This changeset workaround the issue by copying a patched version
of provision_700.py if the installed version of openstack-packstack
matches any of the regex in packstack_versions_to_patch list.

Change-Id: I2dc331637f1152cf401d103853c5dbd4a19f9fb7
Adds missing provision tag

Change-Id: I6b9c084e6d95f997d9aa0360cb09c17d7dec6de0