text: /**
   * Polyfills for used functionality in other JS files in the ../ folder
   */
  
  // Production steps of ECMA-262, Edition 6, 22.1.2.1
  if (!Array.from) {
      Array.from = (function () {
          var toStr = Object.prototype.toString;
          var isCallable = function (fn) {
              return typeof fn === 'function' || toStr.call(fn) === '[object Function]';
          };
          var toInteger = function (value) {
              var number = Number(value);
              if (isNaN(number)) {
                  return 0;
              }
              if (number === 0 || !isFinite(number)) {
                  return number;
              }
              return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
          };
          var maxSafeInteger = Math.pow(2, 53) - 1;
          var toLength = function (value) {
              var len = toInteger(value);
              return Math.min(Math.max(len, 0), maxSafeInteger);
          };
  
          // The length property of the from method is 1.
          return function from(arrayLike /*, mapFn, thisArg */) {
              // 1. Let C be the this value.
              var C = this;
  
              // 2. Let items be ToObject(arrayLike).
              var items = Object(arrayLike);
  
              // 3. ReturnIfAbrupt(items).
              if (arrayLike == null) {
                  throw new TypeError('Array.from requires an array-like object - not null or undefined');
              }
  
              // 4. If mapfn is undefined, then let mapping be false.
              var mapFn = arguments.length > 1 ? arguments[1] : void undefined;
              var T;
              if (typeof mapFn !== 'undefined') {
                  // 5. else
                  // 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
                  if (!isCallable(mapFn)) {
                      throw new TypeError('Array.from: when provided, the second argument must be a function');
                  }
  
                  // 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
                  if (arguments.length > 2) {
                      T = arguments[2];
                  }
              }
  
              // 10. Let lenValue be Get(items, "length").
              // 11. Let len be ToLength(lenValue).
              var len = toLength(items.length);
  
              // 13. If IsConstructor(C) is true, then
              // 13. a. Let A be the result of calling the [[Construct]] internal method
              // of C with an argument list containing the single item len.
              // 14. a. Else, Let A be ArrayCreate(len).
              var A = isCallable(C) ? Object(new C(len)) : new Array(len);
  
              // 16. Let k be 0.
              var k = 0;
              // 17. Repeat, while k < len… (also steps a - h)
              var kValue;
              while (k < len) {
                  kValue = items[k];
                  if (mapFn) {
                      A[k] = typeof T === 'undefined' ? mapFn(kValue, k) : mapFn.call(T, kValue, k);
                  } else {
                      A[k] = kValue;
                  }
                  k += 1;
              }
              // 18. Let putStatus be Put(A, "length", len, true).
              A.length = len;
              // 20. Return A.
              return A;
          };
      }());
  }
  
  if (typeof Object.assign !== 'function') {
      // Must be writable: true, enumerable: false, configurable: true
      Object.defineProperty(Object, 'assign', {
          value: function assign(target, varArgs) { // .length of function is 2
              'use strict';
              if (target == null) { // TypeError if undefined or null
                  throw new TypeError('Cannot convert undefined or null to object');
              }
  
              var to = Object(target);
  
              for (var index = 1; index < arguments.length; index++) {
                  var nextSource = arguments[index];
  
                  if (nextSource != null) { // Skip over if undefined or null
                      for (var nextKey in nextSource) {
                          // Avoid bugs when hasOwnProperty is shadowed
                          if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
                              to[nextKey] = nextSource[nextKey];
                          }
                      }
                  }
              }
              return to;
          },
          writable: true,
          configurable: true
      });
  }
  
  // Test via a getter in the options object to see if the passive property is accessed
  var supportsPassive = false;
  try {
      var opts = Object.defineProperty({}, 'passive', {
          get: function () {
              supportsPassive = true;
          }
      });
      window.addEventListener('testPassive', null, opts);
      window.removeEventListener('testPassive', null, opts);
  } catch (e) { }
  
  // Adds forEach function to NodeList class prototype
  // Adds matches function for IE11
  (function () {
      if (typeof NodeList.prototype.forEach === 'function') {
          return false;
      } else {
          NodeList.prototype.forEach = Array.prototype.forEach;
      }
  
      if (!Element.prototype.matches) {
          Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
      }
  })();
  
  if (!String.prototype.endsWith) {
      String.prototype.endsWith = function (searchString, position) {
          var subjectString = this.toString();
          if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > subjectString.length) {
              position = subjectString.length;
          }
          position -= searchString.length;
          var lastIndex = subjectString.indexOf(searchString, position);
          return lastIndex !== -1 && lastIndex === position;
      };
  }