* remove Fedora-x86_64-20-20131211.1-sda, Fedora-x86_64-20-20140618-sda is already availabe because Heat is enabled (https://github.com/openstack-dev/devstack/blob/master/stackrc#L450) * update version of CirrOS, latest version is 0.3.3 * add current Trusty image (trusty-server-cloudimg-amd64-disk1) Change-Id: I3dc3a35724fca4fa98559eef275c1b3d818825d9