Clean up unused bower dependencies (#1703)

We're in the process of migrating away from bower so we can start by
removing the stuff it installs that we aren't using.

Author: alexpelan

bower.json

@@ -22,15 +22,9 @@
     "tests"
   ],
   "dependencies": {
-    "angular": "^1.5.5",
     "bootstrap": "^3.3.6",
-    "ember": "^2.5.1",
-    "foundation": "^5.5.3",
-    "handlebars": "^4.0.5",
     "lodash": "^4.11.2",
     "mustache.js": "mustache#^2.2.1",
-    "normalize-css": "normalize.css#^4.1.1",
-    "react": "^15.0.1",
-    "underscore": "^1.8.3"
+    "normalize-css": "normalize.css#^4.1.1"
   }
 }