function reserveDeveloperTokens(address _developers, uint _developerPctX10K) public ownerOnly unlockedOnly {
    developers = _developers;
    developerPctX10K = _developerPctX10K;
    uint _tokenCount = token.balanceOf(this);
    developerReserve = safeMul(_tokenCount, developerPctX10K) / 1000000;
  }