diff --git a/frontend/drupal/sites/all/libraries/blazy/blazy.js b/frontend/drupal/sites/all/libraries/blazy/blazy.js
new file mode 100644
index 000000000..00af78dcc
--- /dev/null
+++ b/frontend/drupal/sites/all/libraries/blazy/blazy.js
@@ -0,0 +1,370 @@
+/*!
+  hey, [be]Lazy.js - v1.8.2 - 2016.10.25
+  A fast, small and dependency free lazy load script (https://github.com/dinbror/blazy)
+  (c) Bjoern Klinggaard - @bklinggaard - http://dinbror.dk/blazy
+*/
+;
+(function(root, blazy) {
+    if (typeof define === 'function' && define.amd) {
+        // AMD. Register bLazy as an anonymous module
+        define(blazy);
+    } else if (typeof exports === 'object') {
+        // Node. Does not work with strict CommonJS, but
+        // only CommonJS-like environments that support module.exports,
+        // like Node.
+        module.exports = blazy();
+    } else {
+        // Browser globals. Register bLazy on window
+        root.Blazy = blazy();
+    }
+})(this, function() {
+    'use strict';
+
+    //private vars
+    var _source, _viewport, _isRetina, _supportClosest, _attrSrc = 'src', _attrSrcset = 'srcset';
+
+    // constructor
+    return function Blazy(options) {
+        //IE7- fallback for missing querySelectorAll support
+        if (!document.querySelectorAll) {
+            var s = document.createStyleSheet();
+            document.querySelectorAll = function(r, c, i, j, a) {
+                a = document.all, c = [], r = r.replace(/\[for\b/gi, '[htmlFor').split(',');
+                for (i = r.length; i--;) {
+                    s.addRule(r[i], 'k:v');
+                    for (j = a.length; j--;) a[j].currentStyle.k && c.push(a[j]);
+                    s.removeRule(0);
+                }
+                return c;
+            };
+        }
+
+        //options and helper vars
+        var scope = this;
+        var util = scope._util = {};
+        util.elements = [];
+        util.destroyed = true;
+        scope.options = options || {};
+        scope.options.error = scope.options.error || false;
+        scope.options.offset = scope.options.offset || 100;
+        scope.options.root = scope.options.root || document;
+        scope.options.success = scope.options.success || false;
+        scope.options.selector = scope.options.selector || '.b-lazy';
+        scope.options.separator = scope.options.separator || '|';
+        scope.options.containerClass = scope.options.container;
+        scope.options.container = scope.options.containerClass ? document.querySelectorAll(scope.options.containerClass) : false;
+        scope.options.errorClass = scope.options.errorClass || 'b-error';
+        scope.options.breakpoints = scope.options.breakpoints || false;
+        scope.options.loadInvisible = scope.options.loadInvisible || false;
+        scope.options.successClass = scope.options.successClass || 'b-loaded';
+        scope.options.validateDelay = scope.options.validateDelay || 25;
+        scope.options.saveViewportOffsetDelay = scope.options.saveViewportOffsetDelay || 50;
+        scope.options.srcset = scope.options.srcset || 'data-srcset';
+        scope.options.src = _source = scope.options.src || 'data-src';
+        _supportClosest = Element.prototype.closest;
+        _isRetina = window.devicePixelRatio > 1;
+        _viewport = {};
+        _viewport.top = 0 - scope.options.offset;
+        _viewport.left = 0 - scope.options.offset;
+
+
+        /* public functions
+         ************************************/
+        scope.revalidate = function() {
+            initialize(scope);
+        };
+        scope.load = function(elements, force) {
+            var opt = this.options;
+            if (elements && elements.length === undefined) {
+                loadElement(elements, force, opt);
+            } else {
+                each(elements, function(element) {
+                    loadElement(element, force, opt);
+                });
+            }
+        };
+        scope.destroy = function() {            
+            var util = scope._util;
+            if (scope.options.container) {
+                each(scope.options.container, function(object) {
+                    unbindEvent(object, 'scroll', util.validateT);
+                });
+            }
+            unbindEvent(window, 'scroll', util.validateT);
+            unbindEvent(window, 'resize', util.validateT);
+            unbindEvent(window, 'resize', util.saveViewportOffsetT);
+            util.count = 0;
+            util.elements.length = 0;
+            util.destroyed = true;
+        };
+
+        //throttle, ensures that we don't call the functions too often
+        util.validateT = throttle(function() {
+            validate(scope);
+        }, scope.options.validateDelay, scope);
+        util.saveViewportOffsetT = throttle(function() {
+            saveViewportOffset(scope.options.offset);
+        }, scope.options.saveViewportOffsetDelay, scope);
+        saveViewportOffset(scope.options.offset);
+
+        //handle multi-served image src (obsolete)
+        each(scope.options.breakpoints, function(object) {
+            if (object.width >= window.screen.width) {
+                _source = object.src;
+                return false;
+            }
+        });
+
+        // start lazy load
+        setTimeout(function() {
+            initialize(scope);
+        }); // "dom ready" fix
+
+    };
+
+
+    /* Private helper functions
+     ************************************/
+    function initialize(self) {
+        var util = self._util;
+        // First we create an array of elements to lazy load
+        util.elements = toArray(self.options);
+        util.count = util.elements.length;
+        // Then we bind resize and scroll events if not already binded
+        if (util.destroyed) {
+            util.destroyed = false;
+            if (self.options.container) {
+                each(self.options.container, function(object) {
+                    bindEvent(object, 'scroll', util.validateT);
+                });
+            }
+            bindEvent(window, 'resize', util.saveViewportOffsetT);
+            bindEvent(window, 'resize', util.validateT);
+            bindEvent(window, 'scroll', util.validateT);
+        }
+        // And finally, we start to lazy load.
+        validate(self);
+    }
+
+    function validate(self) {
+        var util = self._util;
+        for (var i = 0; i < util.count; i++) {
+            var element = util.elements[i];
+            if (elementInView(element, self.options) || hasClass(element, self.options.successClass)) {
+                self.load(element);
+                util.elements.splice(i, 1);
+                util.count--;
+                i--;
+            }
+        }
+        if (util.count === 0) {
+            self.destroy();
+        }
+    }
+
+    function elementInView(ele, options) {
+        var rect = ele.getBoundingClientRect();
+
+        if(options.container && _supportClosest){
+            // Is element inside a container?
+            var elementContainer = ele.closest(options.containerClass);
+            if(elementContainer){
+                var containerRect = elementContainer.getBoundingClientRect();
+                // Is container in view?
+                if(inView(containerRect, _viewport)){
+                    var top = containerRect.top - options.offset;
+                    var right = containerRect.right + options.offset;
+                    var bottom = containerRect.bottom + options.offset;
+                    var left = containerRect.left - options.offset;
+                    var containerRectWithOffset = {
+                        top: top > _viewport.top ? top : _viewport.top,
+                        right: right < _viewport.right ? right : _viewport.right,
+                        bottom: bottom < _viewport.bottom ? bottom : _viewport.bottom,
+                        left: left > _viewport.left ? left : _viewport.left
+                    };
+                    // Is element in view of container?
+                    return inView(rect, containerRectWithOffset);
+                } else {
+                    return false;
+                }
+            }
+        }      
+        return inView(rect, _viewport);
+    }
+
+    function inView(rect, viewport){
+        // Intersection
+        return rect.right >= viewport.left &&
+               rect.bottom >= viewport.top && 
+               rect.left <= viewport.right && 
+               rect.top <= viewport.bottom;
+    }
+
+    function loadElement(ele, force, options) {
+        // if element is visible, not loaded or forced
+        if (!hasClass(ele, options.successClass) && (force || options.loadInvisible || (ele.offsetWidth > 0 && ele.offsetHeight > 0))) {
+            var dataSrc = getAttr(ele, _source) || getAttr(ele, options.src); // fallback to default 'data-src'
+            if (dataSrc) {
+                var dataSrcSplitted = dataSrc.split(options.separator);
+                var src = dataSrcSplitted[_isRetina && dataSrcSplitted.length > 1 ? 1 : 0];
+                var srcset = getAttr(ele, options.srcset);
+                var isImage = equal(ele, 'img');
+                var parent = ele.parentNode;
+                var isPicture = parent && equal(parent, 'picture');
+                // Image or background image
+                if (isImage || ele.src === undefined) {
+                    var img = new Image();
+                    // using EventListener instead of onerror and onload
+                    // due to bug introduced in chrome v50 
+                    // (https://productforums.google.com/forum/#!topic/chrome/p51Lk7vnP2o)
+                    var onErrorHandler = function() {
+                        if (options.error) options.error(ele, "invalid");
+                        addClass(ele, options.errorClass);
+                        unbindEvent(img, 'error', onErrorHandler);
+                        unbindEvent(img, 'load', onLoadHandler);
+                    };
+                    var onLoadHandler = function() {
+                        // Is element an image
+                        if (isImage) {
+                            if(!isPicture) {
+                                handleSources(ele, src, srcset);
+                            }
+                        // or background-image
+                        } else {
+                            ele.style.backgroundImage = 'url("' + src + '")';
+                        }
+                        itemLoaded(ele, options);
+                        unbindEvent(img, 'load', onLoadHandler);
+                        unbindEvent(img, 'error', onErrorHandler);
+                    };
+                    
+                    // Picture element
+                    if (isPicture) {
+                        img = ele; // Image tag inside picture element wont get preloaded
+                        each(parent.getElementsByTagName('source'), function(source) {
+                            handleSource(source, _attrSrcset, options.srcset);
+                        });
+                    }
+                    bindEvent(img, 'error', onErrorHandler);
+                    bindEvent(img, 'load', onLoadHandler);
+                    handleSources(img, src, srcset); // Preload
+
+                } else { // An item with src like iframe, unity games, simpel video etc
+                    ele.src = src;
+                    itemLoaded(ele, options);
+                }
+            } else {
+                // video with child source
+                if (equal(ele, 'video')) {
+                    each(ele.getElementsByTagName('source'), function(source) {
+                        handleSource(source, _attrSrc, options.src);
+                    });
+                    ele.load();
+                    itemLoaded(ele, options);
+                } else {
+                    if (options.error) options.error(ele, "missing");
+                    addClass(ele, options.errorClass);
+                }
+            }
+        }
+    }
+
+    function itemLoaded(ele, options) {
+        addClass(ele, options.successClass);
+        if (options.success) options.success(ele);
+        // cleanup markup, remove data source attributes
+        removeAttr(ele, options.src);
+        removeAttr(ele, options.srcset);
+        each(options.breakpoints, function(object) {
+            removeAttr(ele, object.src);
+        });
+    }
+
+    function handleSource(ele, attr, dataAttr) {
+        var dataSrc = getAttr(ele, dataAttr);
+        if (dataSrc) {
+            setAttr(ele, attr, dataSrc);
+            removeAttr(ele, dataAttr);
+        }
+    }
+
+    function handleSources(ele, src, srcset){
+        if(srcset) {
+            setAttr(ele, _attrSrcset, srcset); //srcset
+        }
+        ele.src = src; //src 
+    }
+
+    function setAttr(ele, attr, value){
+        ele.setAttribute(attr, value);
+    }
+
+    function getAttr(ele, attr) {
+        return ele.getAttribute(attr);
+    }
+
+    function removeAttr(ele, attr){
+        ele.removeAttribute(attr); 
+    }
+
+    function equal(ele, str) {
+        return ele.nodeName.toLowerCase() === str;
+    }
+
+    function hasClass(ele, className) {
+        return (' ' + ele.className + ' ').indexOf(' ' + className + ' ') !== -1;
+    }
+
+    function addClass(ele, className) {
+        if (!hasClass(ele, className)) {
+            ele.className += ' ' + className;
+        }
+    }
+
+    function toArray(options) {
+        var array = [];
+        var nodelist = (options.root).querySelectorAll(options.selector);
+        for (var i = nodelist.length; i--; array.unshift(nodelist[i])) {}
+        return array;
+    }
+
+    function saveViewportOffset(offset) {
+        _viewport.bottom = (window.innerHeight || document.documentElement.clientHeight) + offset;
+        _viewport.right = (window.innerWidth || document.documentElement.clientWidth) + offset;
+    }
+
+    function bindEvent(ele, type, fn) {
+        if (ele.attachEvent) {
+            ele.attachEvent && ele.attachEvent('on' + type, fn);
+        } else {
+            ele.addEventListener(type, fn, { capture: false, passive: true });
+        }
+    }
+
+    function unbindEvent(ele, type, fn) {
+        if (ele.detachEvent) {
+            ele.detachEvent && ele.detachEvent('on' + type, fn);
+        } else {
+            ele.removeEventListener(type, fn, { capture: false, passive: true });
+        }
+    }
+
+    function each(object, fn) {
+        if (object && fn) {
+            var l = object.length;
+            for (var i = 0; i < l && fn(object[i], i) !== false; i++) {}
+        }
+    }
+
+    function throttle(fn, minDelay, scope) {
+        var lastCall = 0;
+        return function() {
+            var now = +new Date();
+            if (now - lastCall < minDelay) {
+                return;
+            }
+            lastCall = now;
+            fn.apply(scope, arguments);
+        };
+    }
+});
diff --git a/frontend/drupal/sites/all/libraries/blazy/blazy.min.js b/frontend/drupal/sites/all/libraries/blazy/blazy.min.js
index 3957cac02..649abfd84 100644
--- a/frontend/drupal/sites/all/libraries/blazy/blazy.min.js
+++ b/frontend/drupal/sites/all/libraries/blazy/blazy.min.js
@@ -3,4 +3,4 @@
   A fast, small and dependency free lazy load script (https://github.com/dinbror/blazy)
   (c) Bjoern Klinggaard - @bklinggaard - http://dinbror.dk/blazy
 */
-  (function(q,m){"function"===typeof define&&define.amd?define(m):"object"===typeof exports?module.exports=m():q.Blazy=m()})(this,function(){function q(b){var c=b._util;c.elements=E(b.options);c.count=c.elements.length;c.destroyed&&(c.destroyed=!1,b.options.container&&l(b.options.container,function(a){n(a,"scroll",c.validateT)}),n(window,"resize",c.saveViewportOffsetT),n(window,"resize",c.validateT),n(window,"scroll",c.validateT));m(b)}function m(b){for(var c=b._util,a=0;a<c.count;a++){var d=c.elements[a],e;a:{var g=d;e=b.options;var p=g.getBoundingClientRect();if(e.container&&y&&(g=g.closest(e.containerClass))){g=g.getBoundingClientRect();e=r(g,f)?r(p,{top:g.top-e.offset,right:g.right+e.offset,bottom:g.bottom+e.offset,left:g.left-e.offset}):!1;break a}e=r(p,f)}if(e||t(d,b.options.successClass))b.load(d),c.elements.splice(a,1),c.count--,a--}0===c.count&&b.destroy()}function r(b,c){return b.right>=c.left&&b.bottom>=c.top&&b.left<=c.right&&b.top<=c.bottom}function z(b,c,a){if(!t(b,a.successClass)&&(c||a.loadInvisible||0<b.offsetWidth&&0<b.offsetHeight))if(c=b.getAttribute(u)||b.getAttribute(a.src)){c=c.split(a.separator);var d=c[A&&1<c.length?1:0],e=b.getAttribute(a.srcset),g="img"===b.nodeName.toLowerCase(),p=(c=b.parentNode)&&"picture"===c.nodeName.toLowerCase();if(g||void 0===b.src){var h=new Image,w=function(){a.error&&a.error(b,"invalid");v(b,a.errorClass);k(h,"error",w);k(h,"load",f)},f=function(){g?p||B(b,d,e):b.style.backgroundImage='url("'+d+'")';x(b,a);k(h,"load",f);k(h,"error",w)};p&&(h=b,l(c.getElementsByTagName("source"),function(b){var c=a.srcset,e=b.getAttribute(c);e&&(b.setAttribute("srcset",e),b.removeAttribute(c))}));n(h,"error",w);n(h,"load",f);B(h,d,e)}else b.src=d,x(b,a)}else"video"===b.nodeName.toLowerCase()?(l(b.getElementsByTagName("source"),function(b){var c=a.src,e=b.getAttribute(c);e&&(b.setAttribute("src",e),b.removeAttribute(c))}),b.load(),x(b,a)):(a.error&&a.error(b,"missing"),v(b,a.errorClass))}function x(b,c){v(b,c.successClass);c.success&&c.success(b);b.removeAttribute(c.src);b.removeAttribute(c.srcset);l(c.breakpoints,function(a){b.removeAttribute(a.src)})}function B(b,c,a){a&&b.setAttribute("srcset",a);b.src=c}function t(b,c){return-1!==(" "+b.className+" ").indexOf(" "+c+" ")}function v(b,c){t(b,c)||(b.className+=" "+c)}function E(b){var c=[];b=b.root.querySelectorAll(b.selector);for(var a=b.length;a--;c.unshift(b[a]));return c}function C(b){f.bottom=(window.innerHeight||document.documentElement.clientHeight)+b;f.right=(window.innerWidth||document.documentElement.clientWidth)+b}function n(b,c,a){b.attachEvent?b.attachEvent&&b.attachEvent("on"+c,a):b.addEventListener(c,a,{capture:!1,passive:!0})}function k(b,c,a){b.detachEvent?b.detachEvent&&b.detachEvent("on"+c,a):b.removeEventListener(c,a,{capture:!1,passive:!0})}function l(b,c){if(b&&c)for(var a=b.length,d=0;d<a&&!1!==c(b[d],d);d++);}function D(b,c,a){var d=0;return function(){var e=+new Date;e-d<c||(d=e,b.apply(a,arguments))}}var u,f,A,y;return function(b){if(!document.querySelectorAll){var c=document.createStyleSheet();document.querySelectorAll=function(a,b,d,h,f){f=document.all;b=[];a=a.replace(/\[for\b/gi,"[htmlFor").split(",");for(d=a.length;d--;){c.addRule(a[d],"k:v");for(h=f.length;h--;)f[h].currentStyle.k&&b.push(f[h]);c.removeRule(0)}return b}}var a=this,d=a._util={};d.elements=[];d.destroyed=!0;a.options=b||{};a.options.error=a.options.error||!1;a.options.offset=a.options.offset||100;a.options.root=a.options.root||document;a.options.success=a.options.success||!1;a.options.selector=a.options.selector||".b-lazy";a.options.separator=a.options.separator||"|";a.options.containerClass=a.options.container;a.options.container=a.options.containerClass?document.querySelectorAll(a.options.containerClass):!1;a.options.errorClass=a.options.errorClass||"b-error";a.options.breakpoints=a.options.breakpoints||!1;a.options.loadInvisible=a.options.loadInvisible||!1;a.options.successClass=a.options.successClass||"b-loaded";a.options.validateDelay=a.options.validateDelay||25;a.options.saveViewportOffsetDelay=a.options.saveViewportOffsetDelay||50;a.options.srcset=a.options.srcset||"data-srcset";a.options.src=u=a.options.src||"data-src";y=Element.prototype.closest;A=1<window.devicePixelRatio;f={};f.top=0-a.options.offset;f.left=0-a.options.offset;a.revalidate=function(){q(a)};a.load=function(a,b){var c=this.options;void 0===a.length?z(a,b,c):l(a,function(a){z(a,b,c)})};a.destroy=function(){var a=this._util;this.options.container&&l(this.options.container,function(b){k(b,"scroll",a.validateT)});k(window,"scroll",a.validateT);k(window,"resize",a.validateT);k(window,"resize",a.saveViewportOffsetT);a.count=0;a.elements.length=0;a.destroyed=!0};d.validateT=D(function(){m(a)},a.options.validateDelay,a);d.saveViewportOffsetT=D(function(){C(a.options.offset)},a.options.saveViewportOffsetDelay,a);C(a.options.offset);l(a.options.breakpoints,function(a){if(a.width>=window.screen.width)return u=a.src,!1});setTimeout(function(){q(a)})}});
+  (function(q,m){"function"===typeof define&&define.amd?define(m):"object"===typeof exports?module.exports=m():q.Blazy=m()})(this,function(){function q(b){var c=b._util;c.elements=E(b.options);c.count=c.elements.length;c.destroyed&&(c.destroyed=!1,b.options.container&&l(b.options.container,function(a){n(a,"scroll",c.validateT)}),n(window,"resize",c.saveViewportOffsetT),n(window,"resize",c.validateT),n(window,"scroll",c.validateT));m(b)}function m(b){for(var c=b._util,a=0;a<c.count;a++){var d=c.elements[a],e;a:{var g=d;e=b.options;var p=g.getBoundingClientRect();if(e.container&&y&&(g=g.closest(e.containerClass))){g=g.getBoundingClientRect();e=r(g,f)?r(p,{top:g.top-e.offset,right:g.right+e.offset,bottom:g.bottom+e.offset,left:g.left-e.offset}):!1;break a}e=r(p,f)}if(e||t(d,b.options.successClass))b.load(d),c.elements.splice(a,1),c.count--,a--}0===c.count&&b.destroy()}function r(b,c){return b.right>=c.left&&b.bottom>=c.top&&b.left<=c.right&&b.top<=c.bottom}function z(b,c,a){if(!t(b,a.successClass)&&(c||a.loadInvisible||0<b.offsetWidth&&0<b.offsetHeight))if(c=b.getAttribute(u)||b.getAttribute(a.src)){c=c.split(a.separator);var d=c[A&&1<c.length?1:0],e=b.getAttribute(a.srcset),g="img"===b.nodeName.toLowerCase(),p=(c=b.parentNode)&&"picture"===c.nodeName.toLowerCase();if(g||void 0===b.src){var h=new Image,w=function(){a.error&&a.error(b,"invalid");v(b,a.errorClass);k(h,"error",w);k(h,"load",f)},f=function(){g?p||B(b,d,e):b.style.backgroundImage='url("'+d+'")';x(b,a);k(h,"load",f);k(h,"error",w)};p&&(h=b,l(c.getElementsByTagName("source"),function(b){var c=a.srcset,e=b.getAttribute(c);e&&(b.setAttribute("srcset",e),b.removeAttribute(c))}));n(h,"error",w);n(h,"load",f);B(h,d,e)}else b.src=d,x(b,a)}else"video"===b.nodeName.toLowerCase()?(l(b.getElementsByTagName("source"),function(b){var c=a.src,e=b.getAttribute(c);e&&(b.setAttribute("src",e),b.removeAttribute(c))}),b.load(),x(b,a)):(a.error&&a.error(b,"missing"),v(b,a.errorClass))}function x(b,c){v(b,c.successClass);c.success&&c.success(b);b.removeAttribute(c.src);b.removeAttribute(c.srcset);l(c.breakpoints,function(a){b.removeAttribute(a.src)})}function B(b,c,a){a&&b.setAttribute("srcset",a);b.src=c}function t(b,c){return-1!==(" "+b.className+" ").indexOf(" "+c+" ")}function v(b,c){t(b,c)||(b.className+=" "+c)}function E(b){var c=[];b=b.root.querySelectorAll(b.selector);for(var a=b.length;a--;c.unshift(b[a]));return c}function C(b){f.bottom=(window.innerHeight||document.documentElement.clientHeight)+b;f.right=(window.innerWidth||document.documentElement.clientWidth)+b}function n(b,c,a){b.attachEvent?b.attachEvent&&b.attachEvent("on"+c,a):b.addEventListener(c,a,{capture:!1,passive:!0})}function k(b,c,a){b.detachEvent?b.detachEvent&&b.detachEvent("on"+c,a):b.removeEventListener(c,a,{capture:!1,passive:!0})}function l(b,c){if(b&&c)for(var a=b.length,d=0;d<a&&!1!==c(b[d],d);d++);}function D(b,c,a){var d=0;return function(){var e=+new Date;e-d<c||(d=e,b.apply(a,arguments))}}var u,f,A,y;return function(b){if(!document.querySelectorAll){var c=document.createStyleSheet();document.querySelectorAll=function(a,b,d,h,f){f=document.all;b=[];a=a.replace(/\[for\b/gi,"[htmlFor").split(",");for(d=a.length;d--;){c.addRule(a[d],"k:v");for(h=f.length;h--;)f[h].currentStyle.k&&b.push(f[h]);c.removeRule(0)}return b}}var a=this,d=a._util={};d.elements=[];d.destroyed=!0;a.options=b||{};a.options.error=a.options.error||!1;a.options.offset=a.options.offset||100;a.options.root=a.options.root||document;a.options.success=a.options.success||!1;a.options.selector=a.options.selector||".b-lazy";a.options.separator=a.options.separator||"|";a.options.containerClass=a.options.container;a.options.container=a.options.containerClass?document.querySelectorAll(a.options.containerClass):!1;a.options.errorClass=a.options.errorClass||"b-error";a.options.breakpoints=a.options.breakpoints||!1;a.options.loadInvisible=a.options.loadInvisible||!1;a.options.successClass=a.options.successClass||"b-loaded";a.options.validateDelay=a.options.validateDelay||25;a.options.saveViewportOffsetDelay=a.options.saveViewportOffsetDelay||50;a.options.srcset=a.options.srcset||"data-srcset";a.options.src=u=a.options.src||"data-src";y=Element.prototype.closest;A=1<window.devicePixelRatio;f={};f.top=0-a.options.offset;f.left=0-a.options.offset;a.revalidate=function(){q(a)};a.load=function(a,b){var c=this.options;void 0===a.length?z(a,b,c):l(a,function(a){z(a,b,c)})};a.destroy=function(){var a=this._util;this.options.container&&l(this.options.container,function(b){k(b,"scroll",a.validateT)});k(window,"scroll",a.validateT);k(window,"resize",a.validateT);k(window,"resize",a.saveViewportOffsetT);a.count=0;a.elements.length=0;a.destroyed=!0};d.validateT=D(function(){m(a)},a.options.validateDelay,a);d.saveViewportOffsetT=D(function(){C(a.options.offset)},a.options.saveViewportOffsetDelay,a);C(a.options.offset);l(a.options.breakpoints,function(a){if(a.width>=window.screen.width)return u=a.src,!1});setTimeout(function(){q(a)})}});
\ No newline at end of file
diff --git a/frontend/drupal/sites/all/libraries/blazy/polyfills/closest.js b/frontend/drupal/sites/all/libraries/blazy/polyfills/closest.js
new file mode 100644
index 000000000..83c8f5612
--- /dev/null
+++ b/frontend/drupal/sites/all/libraries/blazy/polyfills/closest.js
@@ -0,0 +1,29 @@
+// Polyfill for Element.closest that falls back to Element.matches that falls back to querySelectorAll
+// Created for blazy.js 1.8.1 - https://github.com/dinbror/blazy to ensure IE7+ support
+
+
+(function () {
+    if (!Element.prototype.matches) {
+    Element.prototype.matches = 
+        Element.prototype.matchesSelector || 
+        Element.prototype.mozMatchesSelector ||
+        Element.prototype.msMatchesSelector || 
+        Element.prototype.oMatchesSelector || 
+        Element.prototype.webkitMatchesSelector ||
+        function(s) {
+            var matches = (this.document || this.ownerDocument).querySelectorAll(s),
+                i = matches.length;
+            while (--i >= 0 && matches.item(i) !== this) {}
+            return i > -1;            
+        };
+	}
+
+	if (!Element.prototype.closest) {
+		Element.prototype.closest = Element.prototype.closest ||
+		function(selector) {
+			var element = this;
+	        while (element.matches && !element.matches(selector)) element = element.parentNode;
+	        return element.matches ? element : null;
+		};
+	}
+})();
\ No newline at end of file