HALO bugfixes

- couple of problems with concurrent threads
- green batch only for nap
- italics gone
- mdpi and & hdpi icons
- statusbar-icon gaps
- flipping batch when content changes
- batch fadeout without flip
- code style

Change-Id: Idfb145eb8e220bf224dd3d0e235e3647dcc82ed9
fix lights out

Change-Id: I3682f7e9978c3a275c73e4a8ea04839af470e0c0
LED custom colors

Change-Id: Ibf55091bf1e7320166d2e950d4c2f434f981d71c
HALO persistent notifications less pronounced + fixes

Change-Id: Ib485468303dfd7ca7fea17d7c755a3ee4e075940