Crosslink to other sites that are owned by Keystone
Crosslink to other sites that are owned by Keystone

Add links to identity service and keystone middleware to
the landing page. This indicates to the user that the
three projects are related.

Change-Id: I37bb4cd866524bad69f90c53e6a58d58202fc263
Co-Authored-By: Steve Martinelli <b4c1c54aa17b54e8a2dbdf62fdad3b03cbd1c893@ca.ibm.com>
Partial-Bug: #1428321

darren-wang/ksc,Mercador/python-keystoneclient,klmitch/python-keystoneclient,darren-wang/ksc,magic0704/python-keystoneclient,klmitch/python-keystoneclient,magic0704/python-keystoneclient,sdpp/python-keystoneclient,Mercador/python-keystoneclient,sdpp/python-keystoneclient