Updated openstack/openstack
Project: openstack/sahara  f460936edfa224b9f65cff78e5a675120cd7bb27

Moved exceptions.py and utils.py up to plugins dir

Plugins dir contains 'general' module which looks like yet another
plugin along with vanilla, fake, hdp, spark and cdh. But it doesn't
and contains two files only. Moved them one level up to avoid such
confusion.

Closes-Bug: #1378178

Change-Id: Ia600e4c584d48a3227552f0051cc3bf906206bed