1. Fixed some issues with the Accessibility Service that cause crashes to other apps.
2. Added new feature - "Keep on foreground" that prevents other apps from killing service (should fix crash when "kill all apps" clicked - untested)
3. Rearrange settings to be categorized and more accessible.
4. Added new feature - Don't collect notifications when device is unlocked - shouldn't work with WidgetLocker, only native 4.2 lock screen.
5. Fixed bug - proximity sensor monitor is now disabled automatically when auto screen on is disabled.
6. Fixed bug - unregister proximity sensor when the service is killed/unloaded

git-svn-id: http://notifications-widget.googlecode.com/svn/trunk@48 21922344-3934-ee51-d6e3-fd981ce84c01