Added reveal-ga, fixes #1

Author: stevegrunwell

package.json

@@ -21,9 +21,11 @@
   "repository": {
     "type": "git",
     "url": "git@github.com:stevegrunwell/building-for-php-cli.git"
-
   },
   "scripts": {
     "test": "grunt test"
+  },
+  "dependencies": {
+    "reveal-ga": "^0.1.0"
   }
 }

templates/_index.html

@@ -58,6 +58,7 @@
         <script src="bower_components/reveal.js/lib/js/head.min.js"></script>
         <script src="bower_components/reveal.js/js/reveal.js"></script>
         <script>
+            var gaPropertyID = 'UA-72219675-4';
 
           // Full list of configuration options available at:
           // https://github.com/hakimel/reveal.js#configuration
@@ -77,7 +78,8 @@
               { src: 'bower_components/reveal.js/plugin/highlight/highlight.js', async: true, condition: function() { return !!document.querySelector( '[data-html]' ) || !!document.querySelector( 'pre code' ) || !!document.querySelector( '[data-markdown]' ); }, callback: function() { hljs.initHighlightingOnLoad(); } },
               { 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/loadhtmlslides.js', condition: function() { return !!document.querySelector( '[data-html]' ); } },
+              { src: 'node_modules/reveal-ga/dist/reveal-ga.min.js' }
             ]
           });