HALO new vertical gestures (NOT READY FOR RELEASE)

itroduces step gestures

-- Clear all notifications
-- Clear current notification

(*)

-- Hide HALO
-- Silence HALO until woken

Change-Id: I4b5bb7ec612dc0eb1d95e970348b15fba1d79df0

Conflicts:
	packages/SystemUI/res/drawable-xhdpi/halo_back_left.png
	packages/SystemUI/res/drawable-xhdpi/halo_back_right.png
	packages/SystemUI/res/drawable-xhdpi/halo_dismiss.png
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java
HALO clearall/silence (STILL NOT READY FOR RELEASE)

but working ...

Change-Id: Ie1c25f4ad60d2fac6321417c6fcf93e3dccd9d93

Conflicts:
	packages/SystemUI/res/drawable-xhdpi/halo_dismiss.png
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java
HALO clearall-fix + dismiss icon (READY, BUT NEW STYLE IS XHDPI ONLY!)

Change-Id: I5d47a2dda9139445503f4e93f9a72c02b48cb88d

Conflicts:
	packages/SystemUI/res/drawable-xhdpi/halo_dismiss.png
HALO cleanup & clearall-nap

Change-Id: I05e45812fa10e3f6b3818ac4a96d94c7d0d5d125
Halo: tablet mode support

Change-Id: I2c735b68b28ac0e2ccddc6a45e11e467321cf5fe

Conflicts:
	packages/SystemUI/res/layout/system_bar_notification_panel_title.xml
	packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java