Merge fixes from tag '0.1.0'

Release 0.1.0

* tag '0.1.0':
  log: remove debugging log
  about: list contributors alphabetically
  packaging: create valid bundle and dmg
  call: detect ring calls to prepend 'ring:'
  credits: add Credits.rtf file
  ui: hide advanced and security screens for accounts
  preferences: bind video prefs to lrc
  build: fix detections of .xib by xcode

Change-Id: I3c4440286982b8e58898c8cd0b8c6f3d22f47412