code: function(eventType, commandClass)
  	{
  		if (!eventType) throw new Error('eventType cannot be undefined');
  		
  		if (commandClass === undefined)
  		{
  			delete this.__commands[eventType];
  			return this;
  		}
  		
  		if (!this.__commands[eventType]) return;
  		var index = this.__commands[eventType].indexOf(commandClass);
  		if (index == -1) return;
  		this.__commands[eventType].splice(index, 1);
  		
  		return this;
  	}
docs: Unmap specified Command class from given event