func: function removeVoter(address older, string proposal) external 
      {
          
          require(isVoter(tx.origin) && !mStopped && isVoter(older));
          
          if(!confirmation(uint256(keccak256(msg.data)))) return;
          
          mNumVoters--;
          delete mVoters[uint(older)];
          
          emit VoterRemoved(older, uint256(keccak256(msg.data)));
      }