[keycloak-dev] Moving admin console into a separate project

I've already mentioned this as part of the discussion around M1, but I thought it would make sense to create a separate thread for it here. I propose that we move the SaaS admin console into a separate project in github (http://github.com/keycloak/keycloak-admin?). This would allow releasing the console separately from the core Keycloak server. Also, it allows not deploying the SaaS admin console if it's not required (for example for MBaaS, or for a simple internal server where config files/cli is used instead). Also, I believe that the admin console should use TokenService for authentication, and that we drop all authentication, registration, etc. from SaasService.