message: fix walletpassphrase parameter
diff: @@ -150,6 +150,7 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
  if (strMethod == "listtransactions" && n > 2) ConvertTo<boost::int64_t>(params[2]);
  if (strMethod == "listaccounts" && n > 0) ConvertTo<boost::int64_t>(params[0]);
  if (strMethod == "walletpassphrase" && n > 1) ConvertTo<boost::int64_t>(params[1]);
  + if (strMethod == "walletpassphrase" && n > 2) ConvertTo<bool>(params[2]);
  if (strMethod == "getblocktemplate" && n > 0) ConvertTo<Object>(params[0]);
  if (strMethod == "listsinceblock" && n > 1) ConvertTo<boost::int64_t>(params[1]);
  if (strMethod == "sendmany" && n > 1) ConvertTo<Object>(params[1]);
  