Add functional tests for 'ec2 credentials' commands.
Also fix tenant_id in output for create and show.
Change-Id: I6ba3249b67408571624709e17f8aa2ac6d80237d
Currently the code is broken as it references a part of
keystoneclient that does not exist.
Change-Id: I7fbc754537fbb4acffb166b5854840acfaef1fb8
Closes-Bug: #1379871
Create a script that kicks off function tests that exercise
openstackclient commands against a cloud.
If no keystone/openstack process is detected, a devstack instance
is spun up and the tests are run against that.
There is also a hook added to tox.ini so that we can run these
tests easily from a gate job.
Change-Id: I3cc8b2b800de7ca74af506d2c7e8ee481fa985f0