mute alerts for now until we finish building version API
Temporarily use coinplorer as blockchain explorer
Chnged author information to avoid disturbing schildbach

Changed some author information in About so as not to misdirect Zetacoin wallet user enquiries to Andreas Schildbach. Left Google Plus links intact; they still link to Andreas and the Bitcoin-wallet community. ZBAD doesn't have a presence on GPlus that I know of.