
HP doesn't yet seem to have a compatible Fedora 19 base image so this currently only configures the Rackspace providers to use Fedora 19. Given that we use RAX for check tests anyway (and that is where we'll start Fedora) this seems like a good first step. Change-Id: I599f7fd5e25d25f79eabbbc0b7e7b1b60c4c3a2a