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*Alert-v0.2 August 31, 2010

-Broadcast Receiver Implemented with IntentFilter to listen for action "alert.intent.action.ALERT"
-Broadcasts action "alert.intent.action.CANCEL" when Alert is cancelled.
-Fixed Vibrate Checkbox to be checked by default in preferences
-Set up framework for createDialog to be generic method
--Title, Message, and ButtonText are now parameters
--Apps requesting alerts should pass this information as intents.

*Bugs/Regressions/TODOs
-On initial install. Default Ringtone preference shows as "silent".
--However, implemented the code to use "default ringtone"
-Need to implement "Flash" feature
-Need to implement better background