Gathers all of the elements needed for this controller
function gatherElements () {

    var snapWrap = gatherSnapWrap();

    elements = {
      main:  $element[0],
      scrollContainer: $element[0].querySelector('.md-virtual-repeat-container'),
      scroller: $element[0].querySelector('.md-virtual-repeat-scroller'),
      ul:    $element.find('ul')[0],
      input: $element.find('input')[0],
      wrap:  snapWrap.wrap,
      snap:  snapWrap.snap,
      root:  document.body
    };

    elements.li   = elements.ul.getElementsByTagName('li');
    elements.$    = getAngularElements(elements);

    inputModelCtrl = elements.$.input.controller('ngModel');
  }