OpenStack Essex now in epel-testing

[Pádraig Brady]

The latest OpenStack Essex packages have moved from the previous
preview repository to the official EPEL testing repository.

Updated install and configuration instructions are at:
https://fedoraproject.org/wiki/Getting_started_with_OpenStack_EPEL

Please use those packages and instructions for further testing
on Red Hat Enterprise Linux 6 and derivatives.

cheers,
Pádraig.