Updated openstack/openstack
Project: openstack/heat  378e3e0fa8d1483695dc8c83b9bc984532606d52
null
Make engine service docstrings conform to Sphinx

This allows our Sphinx-generated documentation to render the
parameters correctly.

There were some errors in some of the "argN"-documented
functions, so I've updated them to include all the parameters.

Change-Id: Ic3b2c7702331bc85744b24434edbb2656c90916a