Development shortcut in StatusBar and Recent Panel

It enables the wipe data and application force close option in the
recent tasks list and in the notification area. These options will
be available only if the Development shortcut option is enabled.

hange-Id: Ia4e1d040e8eade5afe118dd62bc28c86381c03e6

Conflicts:
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java

Change-Id: I694224439bd0aabc8346b95706693ee34cf7530b
Signed-off-by: DHOMD <DHO@dho.im>
Keyguard: fix statusbar lags when default widget shown.

When statusbar became expanded KeyguardStatusView receives
onKeyguardVisibilityChanged callback and refreshes ClockView.
Because it receives more than one call and every time it reads
new values from resources it cause lags in opening statusbar panel.

Replace this code with BroadcastReceiver and ContentObserver to
refresh it only in case something was changed.

Change-Id: If0dbc1db059536806852661931cb2e6436f2acf4