To prevent the local copy from crashing, only load reveal-ga if we're *not* running on localhost

Author: stevegrunwell

templates/_index.html

@@ -79,7 +79,7 @@
               { src: 'bower_components/reveal.js/plugin/zoom-js/zoom.js', async: true },
               { src: 'bower_components/reveal.js/plugin/notes/notes.js', async: true },
               { src: 'js/loadhtmlslides.js', condition: function() { return !!document.querySelector( '[data-html]' ); } },
-              { src: 'js/reveal-ga.min.js' }
+              { src: 'js/reveal-ga.min.js', condition: function() { return !window.location.host.match(/^localhost:/i); } }
             ]
           });