TF700T: keypad notifications and AutoPart fixes

This change adds support for displaying notifications in the status bar on special keys strokes
(wifi, bt, brightness, media, caps-lock, ...)

Fixes:
- fixed the keyboard wake up on re-dock.
- used stat_download icon for lte
- Reorganized DeviceBroadcastReceiver

Patchset 2: Disabled key debugging

Change-Id: I576cbe94447ef9dbc8eb3dfc526058957adeda21
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge "TF700T: keypad notifications and AutoPart fixes" into cm-10.1