Add drawinglayer

Change-Id: I48c8d110666e0404b49e3a7816c134a7f06fb929
Cosmetics and bin some pointless SAL_INFOs

Change-Id: I444cfdafce5cbd4d6f0ca12b05e477c48237a889
Fix up a few Emacs and vim mode lines

Change-Id: I813b3638d6e368e73d8733f652db553a6e1cb029