halo. what else, style changes

Change-Id: I8d82844c45edd3ce5f73bfed875b8df191defe11

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