TabletUI + MultiUser : Do not display other users notifications

Change-Id: I43777f6c393c84aed19b67d9c17977656d8e6e86
CustomObserver: Make onChange call on same Handler thread

Change-Id: Ia94aff92434b8287f3377872cfa4d5137eb87c76
Add Custom Battery display options (icon,text,percent)

Change-Id: I4294c899aaa2e1ffdb8ed5bc30a724f186c7aea9
Add Clock/Date show/hide options

Change-Id: I9d2614a54d5cccb925ca341220e410d5588af426
Recents: renable KillAll + Mem Show/Hide

Change-Id: I1c9e26f2f0f5033f294f0af8f9885f80e5ae089e
Recents: PanelView is recreated everytime, no need to subscribe

Change-Id: I4b0eac4dc5451da23a580b974097383f24f5594e