am 87fbcc2b: Merge "Implement contacts lookup (caller-id) for incoming SIP calls." into gingerbread

Merge commit '87fbcc2b73b9b92d50c4520053bfc7bdff4cd91b' into gingerbread-plus-aosp

* commit '87fbcc2b73b9b92d50c4520053bfc7bdff4cd91b':
  Implement contacts lookup (caller-id) for incoming SIP calls.