Sync with oslo-incubator fd90c34a9

This syncs python-keystoneclient with oslo-incubator commit hash
fd90c34a914ef98e0c7ccdbf823d9b6d04aa436b

First, remove the existing code to cleanup:
    $ rm -r keystoneclient/openstack/*

Then, sync from oslo-incubator:
    $ python update.py ../python-keystoneclient

Commits since last sync (caed79d):
----------------------------------
de4adbc pep8: fixed multiple violations
e42e77f Restore UUID and human-ID bash completion
250cd88 Fixed a new pep8 error and a small typo
9e88af1 fixed typos found by RETF rules
0d7296f Add kwargs to jsonutils.load(s) functions
822e09b Don't slugify names that don't exist

Change-Id: I33378512593a0cdbc0db0def171b66911aba8708
Merge "Sync with oslo-incubator fd90c34a9"