AwesomeAction: Make more awesomeer

Patchset 1:
- Switched to static methods and enums
- Moved Navbar helpers to its own class to
  be moved to FW for RC navbar recode.
- Created broadcast reicever
  use it like this...

     Intent i = new Intent();
     i.setAction("com.android.systemui.aokp.LAUNCH_ACTION");
     i.putExtra("action", "**string you want AwesomeAction to launch**");
     mContext.sendBroadcast(i);

Removed screenshot option for 2 reasons
1) Security
2) Can't be made static.

Patchset 2/3 : white space / string derp

Patchset 4: mini optimization in fromString function

Patchset 5/6 : clean up. Should be good to go now.

Change-Id: I9159a70082058f4dd1afc47c9d57a6f4b4a6bfb1

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/NavigationBarView.java
	packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java