docs: function getCallbacks(target, delegate, eventType){
    var callbacks = [];
    if(target.delegateGroup && EVENT_CACHE[target.delegateGroup][eventType]){
      _.each(EVENT_CACHE[target.delegateGroup][eventType], function(callbacksList, delegateId){
        if(_.isArray(callbacksList) && (delegateId === delegate.delegateId || ( delegate.matchesSelector && delegate.matchesSelector(delegateId) )) ){
          callbacks = callbacks.concat(callbacksList);
        }
      });
    }
    return callbacks;
  }