Fix remaining dialog dividers

Change-Id: I0b4d2d0706f3393933e40d9c70b62aa3c9b68ed5

Conflicts:

	core/res/res/layout/dialog_custom_title_holo.xml
	core/res/res/layout/dialog_title_holo.xml
	core/res/res/layout/dialog_title_icons_holo.xml