Remove hplefthandclient from global-requirements

The need for hplefthandclient in tests was removed in
https://review.openstack.org/#/c/93363/ so now we
can remove it from global-requirements.

Change-Id: I8442d64f8826a88956642ff360a1107a4814a8c1
bump heatclient to latest version

Update to the latest heatclient version, which is needed for heat
to access some recent features such as software-config.

Change-Id: Ie442aed94efe4a3dafe708f603842f6ee3830416
Merge "Remove hplefthandclient from global-requirements"
Merge "bump heatclient to latest version"
Bump keystoneclient minimum version

Increase keystoneclient minium version for compressed token support,
oauth, and a number of bug fixes.

https://launchpad.net/python-keystoneclient/+milestone/0.9.0

Change-Id: Ie3b4d3aff092295f87aadff5b0d9ba73f8c6c7be