am ac3e2159: Merge change Icaf78440 into eclair-mr2

Merge commit 'ac3e2159b41b825874cf574cf59225d4fbddfbcb' into eclair-mr2-plus-aosp

* commit 'ac3e2159b41b825874cf574cf59225d4fbddfbcb':
  Split vCard composer into two parts: VCardComposer and VCardBuilder.