DateView: disable un/registering on Vibility changed
Should prevent memory leak for the moment.
Also speeds up notification menu expand

Change-Id: Ib6b9f09b1f53d01b6fda1769cff7a2f8bcaa1846
PhabletUI: Don't hide clock when expanding notifications

Change-Id: Ife839045bad40446742418eb985071bd6c9b0dae
TabletUI: Log show flags only if in debug mode

Change-Id: Ife0a8fce516bfb309dcbe11ef1b793369fff9d79
KeyOverride: adapt for Settings

Change-Id: I18f887f8fd6618e02db8966839093a3767310e31