Added AlertAlarmActivity to manifest.
The part of the Alert functionality where the device actually notifies the
user is referred to as the Î÷ÎõAlarmÎéÎ÷.
The Alarm behavior includes the following:
- The AlertAlarmActivity is shown, taking up only part of the screen
- The previous activity is visible behind AlertAlarmActivity, even other
  Apps
  - The screen is turned on at full brightness
  - The default alarm sound is played in a loop
  - The device vibrates in a repeating pattern
  - The key lock ("keyguard") is unlocked

  Sound and vibration will stop if the user interacts with
  AlertAlarmActivity or presses the screen lock button.

  AlertAlarmActivity resembles a dialog box in that it does not cover the
  whole screen.  The portion of the screen outside AlertAlarmActivity will
  dim.
  AlertAlarmActivity displays the following elements:
  - A title
  - A message telling the user to go see their set, including:
  - Artist name, stage name, and time until the set starts
  - A button to show the app and dismiss the dialog
  - A button to dismiss the dialog

  Added launch mode flag ("FLAG_ACTIVITY_SINGLE_TOP") to avoid
  instantiating a new CoachellerActivity in most cases of transitioning
  from AlertAlarmActivity to CoachellerActivity

  CoachellerActivity class
  Implemented onNewIntent to allow further actions when AlertAlarmActivity
  transitions to CoachellerActivity

  AlertManager class
  Launches AlertAlarmActivity when an Alert goes off
  Fixed bug: When the last scheduled Alert goes off, it is not removed as
  the current scheduled alert

  Alert class
  PendingIntent used to broadcast Alert now carries the data to initialize
  AlertAlarmActivity in its Bundle

  LogController class:
  Added LOG category
  No longer relies on System.out.println
  Uses Android Log ERROR level for errors and INFO for everything else

  FestData class:
  Condensed log messages to use only one line per search instead of one
  line per search parameter

  renamed AlertReceiver (extends BroadcastReceiver) to RTFIntentReceiver