title: Isotope with packery gives Error: No layout mode: packery
body: <p>Im trying to use Isotope with packery but I keep geting the following error 
  "Error: No layout mode: packery"</p>
  
  <p>Heres the code:</p>
  
  <p>Html :</p>
  
  <pre><code>      &lt;script src="https://unpkg.com/imagesloaded@4/imagesloaded.pkgd.min.js"&gt;&lt;/script&gt;
  &lt;script src="https://raw.githubusercontent.com/metafizzy/isotope-packery/master/packery-mode.pkgd.min.js"&gt; &lt;/script&gt;
  
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.isotope/2.2.2/isotope.pkgd.min.js"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>Javascript/Jquery :</p>
  
  <pre><code>   var $portfolio = $('.isotope');
     $portfolio.imagesLoaded(function() {
         $portfolio.isotope({
           layoutMode: 'packery',
             isOriginLeft: true,
             stagger: 30,
             masonry: {
               percentPosition: true
             },
             packery: {
              gutter: 10
            }
         });
         $portfolio.isotope();
  
     });
  </code></pre>
  
  <p>I've tried both the minified version and the normal.</p>
  
  <p>With the minified I get  Error: No layout mode: packery</p>
  
  <p>With the normal one I get TypeError: Outlayer is undefined</p>