HALO Style revamp

- speech bubbles are centered
- number batches are roundand simplified, same color as in g+
- markers appear as dots above the bubble
- hiding and dimissing triggers text hints
- couple of bugfixes

WARNING: some of the drawables are good for xhdpi only for now and must
be scaled down for the other resolutions

Change-Id: Ib656664f6f8c42b747df18d65d1e3fb40cb7480c

Conflicts:
	packages/SystemUI/res/drawable-nodpi/bubble_black_l.9.png
	packages/SystemUI/res/drawable-nodpi/bubble_black_r.9.png
	packages/SystemUI/res/layout/halo_speech.xml
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java
HALO hiddenstate-fix + smaller numberbatch

once HALO is hidden an orientationchange won't wake it up getting in
your way.

Change-Id: Id7c2232e4e3e6e49392becbdcddeb1a494faafc8
HALO cleanup & better drawables

Change-Id: I7afb5f1e473e9611059e1ea2acfaa9d307696449
HALO hide bugfix, smaller numberbatch still

Change-Id: I5a94e0a7c39a7369cae2b0cabdbe8696eb15dbc5
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/values/strings.xml
HALO clearall/silence (STILL NOT READY FOR RELEASE)

but working ...

Change-Id: Ie1c25f4ad60d2fac6321417c6fcf93e3dccd9d93

Conflicts:
	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
Better strings

Change-Id: I8e1c97d9ab8df29947e672a214ca006f1f26ba1e

Conflicts:
	packages/SystemUI/res/values-es/strings.xml
	packages/SystemUI/res/values/strings.xml
HALO cleanup & clearall-nap

Change-Id: I05e45812fa10e3f6b3818ac4a96d94c7d0d5d125
HALO: make a trusted overlay

Change-Id: I009be0361c73ec536277641d235b0c495bc43db6