frameworks: Smooth background gradient

Credit to UBER for the images

Change-Id: I3655e9917610348100fa6cb5cede66a63ca82538
add Settings.System boolean helper methods

Change-Id: I749d15a7c6956d938698f16ebde185b114f7f15a
Signed-off-by: Roman Birg <romanbirg@gmail.com>
BootMessage: show more info in boot dialog

Tell the users what package we are running dexOpt on currently

Change-Id: I665ab3847ec1846e40915a1fae21c43e2e7ccf6d