Touch up toggle setup dialog

Be consistent with other dialogs in android and match their style,
also added a close button for a better UX

Change-Id: Ifca3c9456bd2c685d66a6a056fd8047752dc8d3b
Signed-off-by: Roman Birg <romanbirg@gmail.com>

Conflicts:
	res/layout/fragment_configure_toggles.xml
	src/com/android/settings/demented/ArrangeTogglesFragment.java