docs: function setup() {
    if(Hammer.READY) {
      return;
    }
  
    // find what eventtypes we add listeners to
    Hammer.event.determineEventTypes();
  
    // Register all gestures inside Hammer.gestures
    Hammer.utils.each(Hammer.gestures, function(gesture){
      Hammer.detection.register(gesture);
    });
  
    // Add touch events on the document
    Hammer.event.onTouch(Hammer.DOCUMENT, Hammer.EVENT_MOVE, Hammer.detection.detect);
    Hammer.event.onTouch(Hammer.DOCUMENT, Hammer.EVENT_END, Hammer.detection.detect);
  
    // Hammer is ready...!
    Hammer.READY = true;
  }