Launch floating notifications from notification panel (long click)
 * Status bar - long click on notification select 'floating mode' option
 * PIE - long click on notification, auto launches floating window
fix derp in floating notification launch
SystemUI: Fix potential NPE

Does already cause issues on some Halo ports to other ROMs.
Might not cause issues on PA (yet), but better safe than sorry.
Notification long press fix
FW: Halo: Remove expanded desktop dependency to longpress action

* Always on is much better!

depends on: http://review.pac-rom.com/#/c/2456/

Signed-off-by: iGio90 <giovanni.rocca.90@gmail.com>
Change-Id: I777d65cc38b3d84212f04ce6405ceb5de8384903