Merge branch 'master' of github.com:hakimel/reveal.js into dev

package.json

@@ -10,7 +10,7 @@
   "scripts": {
     "test": "gulp test",
     "start": "gulp serve",
-    "build": "gulp build"
+    "build": "gulp"
   },
   "author": {
     "name": "Hakim El Hattab",