Updated openstack/openstack
Project: openstack/heat  c86655b517723e5b9f9592f71ba1d398a699fae8

Do not initialise stack_user password

Since Server implements this property with @property decorators,
setting password to None has the side-effect of writing None to
the resource data.

This change fetches the password with getattr instead.

Change-Id: I1107ee9710ec8520d7231c5b8b711e21b4183a34