code: function _killAll() {
      var k,
          jobs = __extend(_jobs, _runningJobs, _waitingJobs);
  
      // Take every jobs and push them into the _doneJobs object:
      if (_parameters.history)
        for (k in jobs) {
          jobs[k].status = 'done';
          _doneJobs.push(jobs[k]);
  
          if (typeof jobs[k].end === 'function')
            jobs[k].end();
        }
  
      // Reinitialize the different jobs lists:
      _jobs = {};
      _waitingJobs = {};
      _runningJobs = {};
      _sortedByPriorityJobs = [];
  
      // In case some jobs are added right after the kill:
      _isRunning = false;
  
      return this;
    }
docs: Kills every running, waiting, and just added jobs.
  
  @return {Object} Returns conrad.