Initial commit to get Coinpunk working on the Dogecoin network

Modified bitcoinjs libraries to use correct networks and address
prefixes.

Changed all references to BTC to DOGE and Bitcoin to Dogecoin. Renamed
fork to Dogepunk.
Complete modifications from BTC to DOGE

-key formats
-network
-currecy reference
Merge branch 'master' of https://github.com/kaloudis/dogepunk into kaloudis-master

Conflicts:
	public/js/coinpunk/controllers/tx.js
	public/views/dashboard/received.html
Merge branch 'kaloudis-master', to have the best of latest Coinpunk in Doge :)