Update Gaia API documents for #13fa203eb9e2f50ca4611f1bad62f8c1e1e8237d
    Bug 946047: Add nfc read only permissions to Settings UI to allow navigator.mozNfc DOM to be created.

This fix is needed for apps using NFC if "HasNfcSupport" is added to the navigator MozNfc WebIDL.

Conflicts:
	apps/settings/manifest.webapp