Add support for Fedora 20

The list of RPM packages have been updated to support the recently
released Fedora 20 distribution.

Closes-Bug: #1263291

Co-Authored: Alvaro Lopez Ortega <alvaro@gnu.org>
Change-Id: Ia66abef1a1a54e6d5ee6eebc12908cef3f1d211d
Merge "Add support for Fedora 20"
Merge branch 'master' of github.com:openstack-dev/devstack