aroben/Sparkle — pull request #2 by aroben (2012-11-30 03:48:20+00:00)
Title: Quiet automatic updates

This PR makes the "Automatically download and install updates in the future" checkbox (and corresponding `SUAutomaticallyUpdate` default) cause updates to actually be *installed* automatically, not just downloaded automatically. This happens without any user interaction. If the user leaves the app running for a week without restarting, the standard Install Now/Install Later/Skip Version UI appears.

This PR also contains support for "critical" updates, though that seems like maybe it should have been split out separately.