Initial commit for Nfc Message Manager in Gaia side.
Initial Nfc broadcast manager.
Merge branch 'master' of https://git.mozilla.org/releases/gaia into ndef-broadcasts
Nfc Demo accepts named and typed activities instead of system broadcasts.
Added initial Web Activity based contacts and browser support.
Merge branch 'ndef-broadcasts' of ssh://github.com/svic/gaia
NFC: Enable conditionally receiving ndef-discovered activities in dailer, contact, browser, and nfc-demo.