Bug fix: Panic Button key doesn't do anything
Don't need mutation events if on Australis
Reverted name of shortcut key pref so that the pref from previous versions can carry over without special migration handling
Reverted name of shortcut key pref so that the pref from previous versions can carry over without special migration handling
Reverted name of shortcut key pref so that the pref from previous versions can carry over without special migration handling.  Also, some refactoring of code
Added error handling code to Australis-specific helper methods