Fixed demo file structure
diff --git a/package.json b/package.json
index b21011c..f8ece68 100755
--- a/package.json
+++ b/package.json
@@ -4,6 +4,7 @@
   "devDependencies": {
     "grunt": "~0.4.1",
     "grunt-contrib-concat": "^0.5.1",
+    "grunt-contrib-copy": "^0.8.0",
     "grunt-contrib-imagemin": "^0.9.4",
     "grunt-contrib-jasmine": "^0.8.2",
     "grunt-contrib-sass": "^0.9.2",