Add navigation button alignment for tablets

Change-Id: I2bfa62f48b7633192afd801be0b960cf275c98d6
Allow navigation bar editor in landscape

Change-Id: Ic16f43e32f3213fcd1f482e029c44cd194686b81
Merge remote-tracking branch 'sgt7/cm-10.1' into cm-10.1-sgt7