Add --include-pass option for grizzly backwards compat

Set X-Auth-User, X-Auth-Key on all stack commands to allow the
latest python-heatclient to work on grizzly heat.

Partial-Bug:1250731

Change-Id: I29d4785cf3520e809252b5aeab25cf471a88cde8
Add back --token-only for invocation compatibility

This unused option should remain so that scripts that
use it do not break. It is suppressed so it will not
appear in the help.

Closes-Bug:1250731

Change-Id: I1180d8797d1e4c79dba92952931311cce50a1d3f