message: Minor memory fix
  * Minor memory fix
  * Dealing with the race
  * Revert "Dealing with the race"
  This reverts commit
  * Taken the fix from bitcoin code
diff: @@ -117,8 +117,8 @@ static bool multiUserAuthorized(std::string strUserPass)
  std::string strSalt = vFields[1];
  std::string strHash = vFields[2];
  - unsigned int KEY_SIZE = 32;
  - unsigned char *out = new unsigned char[KEY_SIZE];
  + static const unsigned int KEY_SIZE = 32;
  + unsigned char out[KEY_SIZE];
  CHMAC_SHA256(reinterpret_cast<const unsigned char*>(strSalt.c_str()), strSalt.size()).Write(reinterpret_cast<const unsigned char*>(strPass.c_str()), strPass.size()).Finalize(out);
  std::vector<unsigned char> hexvec(out, out+KEY_SIZE);
  