Growl 2.0 Beta 13

* much faster startup time (displays no longer loaded into seperate AppDomains)
* seperated out user-installed displays from built-in displays
* fixed click-to-install display functionality on Vista
* fixed auto-update bug when updating on Vista (intaller error 2689)
* fixed a bug that caused GFW to crash if a Subscriber came online while the list of Forward Computers was being rendered