[1/2] Base: opens music app when headset is plugged

Change-Id: Id8b7c9e9853088b4ffa3c822caac1b3f96def9bf
base: check clock and date shortcuts

Check if app assignd as shortcut is usable else
reset to default

Change-Id: Ic7d3069486be127c206f9f78555fcb235a800135
Merge remote-tracking branch 'omni/android-4.4' into android-4.4