Add a new DNS seed from Chris Decker.

Vouch: Chris is a researcher at ETH Zurich who I have met several times. He has run several useful experiments and analyses on the Bitcoin network.
Address: rename a static ctor method to be more accurate.
Remove some superfluous methods in HDUtils
refactor s/Utils.now().getTime()/Utils.currentTimeMillis()/g
Merge branch 'master' of https://code.google.com/p/bitcoinj