Updated openstack/openstack
Project: openstack/heat  ec0a6720aba3c1b7797b2bb9e6db7fc6b34063a4

Import the stack module directly

Note: the patch imports "stack as parser" in some places to maintain
API (service.py and event.py).

Change-Id: I0409a04789f0ca362cb9ab0b612d47226d785334