am e1a9ca68: Merge "Use NfcAdapter.getDefaultAdapter() to check for NFC prescence." into gingerbread

Merge commit 'e1a9ca686249ebe7c85a98d467bb705e4c3eed2f' into gingerbread-plus-aosp

* commit 'e1a9ca686249ebe7c85a98d467bb705e4c3eed2f':
  Use NfcAdapter.getDefaultAdapter() to check for NFC prescence.