mozilla-services/android-sync — pull request #463 by ncalexan (2014-06-10 21:13:20+00:00)
Title: Bug 1022748 - use custom servers

This accepts extras from `launchSetup`. I went with `{auth:"url", services:{sync:"url"}}`, although I'm going to wait for comment from you and @ckarlof before committing to this.