I've decided to send this patch even if I haven't done full e2e test (as it depends on new imagefactory which is not in yet and I didn't achieve to setup it today). This patch is quite simple, it only enables more than one repository for image building. All worked for me on conductor side, though I'm not sure if it really works with new imagefactory.
requirements: new imagefactory richard su's patches: "[PATCH conductor 1/2] delayed_jobs to build and push with new image factory console" "[PATCH conductor 2/2] template xml change to conform to new format" 'rake dc:prepare_repos' should be run