Moved CKey and KeyStore to coinWallet
Split up Extended Key into Point, Key and ExtendedKey
All dependence of CKey have been ported to Key
FIxed a version filter bug causing to send back the same info to the peer
Added class Shamir for secret sharing and test of that.
added jsonite - a json parser/schema validator based on boost variant - so far only a test, but the classes will be moved to separate files later