upgrade first session to flightphp

assets/js/jquery/jquery.backstretch.js

@@ -284,7 +284,7 @@
       };
 
       for (var i = 0; i < images.length; i++) {
-        if ($.isArray(images[i])) {
+        if (Array.isArray(images[i])) {
           images[i] = widthInsertSort(images[i]);
           var chosen = selectBest(containerWidth, containerHeight, images[i]);
           chosenImages.push(chosen);
@@ -338,7 +338,7 @@
       if (typeof sources === 'undefined') {
         return;
       }
-      if (!$.isArray(sources)) {
+      if (!Array.isArray(sources)) {
         sources = [sources];
       }
 
@@ -424,7 +424,7 @@
       if (typeof images[i] === 'string') {
         processed.push({url: images[i]});
       }
-      else if ($.isArray(images[i])) {
+      else if (Array.isArray(images[i])) {
         processed.push(processImagesArray(images[i]));
       }
       else {
@@ -556,7 +556,7 @@
      * e.g. $.backstretch('/path/to/image.jpg')
      * So, we need to turn this back into an array.
      */
-    this.images = processImagesArray($.isArray(images) ? images : [images]);
+    this.images = processImagesArray(Array.isArray(images) ? images : [images]);
 
     /**
      * Paused-Option