code: function ConsoleHandler(level, grouping, collapsed) {
  	grouping = typeof grouping !== 'undefined' ? grouping : true;
  	collapsed = typeof collapsed !== 'undefined' ? collapsed : false;
  
  	Handler.call(this, level);
  
  	this._grouping = grouping;
  	this._groupMethod = collapsed ? 'groupCollapsed' : 'group';
  	this._openGroup = '';
  }
docs: Console handler.
  
  @constructor ConsoleHandler
  @extends Handler
  @param {number} [level]
  @param {boolean} [grouping=true]
  @param {boolean} [collapsed=false]