port colorpicker and add hex field to light dialog

Fix tabs and whitespace

I think I got it all this time

Patchset 2-6
-rebased

Change-Id: I81359099ece1a8fc395754a942d11b8114b4eec7

Conflicts:

	res/values/strings.xml
	src/com/android/settings/notificationlight/LightSettingsDialog.java