Updated openstack/openstack
Project: openstack/horizon  39ce275485e10d5fd5e848fb42218737c70dfa6c
null
Adding missing system dependencies to quickstart

libffi-dev(el) recently became a system dependency and is not
documented in the quickstart guide.

Closes-bug: #1298587
Change-Id: I6722f9c600335213408f53b81d4a2915a0dc3bf5