message: Fix getbalance when asking for unconfirmed balance
diff: @@ -536,7 +536,7 @@ Value getbalance(const Array& params, bool fHelp)
  for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
  {
  const CWalletTx& wtx = (*it).second;
  - if (!wtx.IsConfirmed())
  + if (!wtx.IsFinal())
  continue;
  int64 allFee;
  