Updated openstack/openstack
Project: openstack/django_openstack_auth  5502ab9f1e437e73046b31476c542be90b5b0aae

Updated the installation instructions

Changed the name of the app from keystone_auth to
openstack_auth in the installation instructions

Removed the redudant installation instructions in README.rst

Change-Id: If97c93a446754573bd6fb55b15cb4c881ad1f4e6