Updated openstack/openstack
Project: openstack/heat  cfd5c580f18bba57a2145f4e227068bfab5162c1

Update test_signal to use stub_keystoneclient

Adds an argument to stub_keystoneclient such that it can be used to
clean up the stubbing in test_signal

Change-Id: I5b29b0b2dd764c735aa0da7ee8d40d867c8b4f2f