Explicitly state handlebars dependency

Author: fayimora

app/templates/_bower.json

@@ -2,7 +2,8 @@
   "name": "<%= _.slugify(appname) %>",
   "version": "0.0.0",
   "dependencies": {
-    "ember": "1.3.1",
+    "ember": "1.3.2",
+    "handlebars": "1.2.1",
     "ember-data": "1.0.0-beta.5"<% if (compassBootstrap) { %>,
     "bootstrap-sass": "~3.0.0"
     <% } %>