Cleanup dependencies

Author: nicolasgarnier

example/package.json

@@ -5,43 +5,22 @@
     "serve": "firebase serve"
   },
   "dependencies": {
-    "@google-cloud/storage": "^1.2.1",
-    "@google-cloud/vision": "^0.12.0",
     "axios": "0.16.1",
     "child-process-promise": "^2.2.0",
     "compression": "1.6.2",
-    "cookie": "^0.3.1",
     "exenv": "^1.2.2",
-    "express": "4.15.3",
-    "firebase": "^4.1.5",
-    "firebase-admin": "~5.2.1",
-    "firebase-functions": "^0.6.2",
+    "firebase": "^4.8.0",
     "firebaseui": "^2.3.0",
-    "history": "^4.6.3",
-    "js-cookie": "^2.1.4",
-    "jss": "^8.1.0",
-    "jss-preset-default": "^3.0.0",
-    "latinize": "^0.4.0",
     "lodash": "4.17.4",
-    "material-ui": "^1.0.0-beta.12",
-    "material-ui-icons": "^1.0.0-beta.10",
-    "mkdirp": "^0.5.1",
-    "mkdirp-promise": "^4.0.0",
     "preact": "8.1.0",
     "preact-compat": "3.16.0",
-    "prop-types": "15.5.10",
     "react": "15.6.1",
     "react-addons-perf": "15.4.2",
     "react-dom": "15.6.1",
-    "react-jss": "^7.1.0",
+    "react-firebaseui": "^1.0.10",
     "react-promise": "~1.1.1",
-    "react-redux": "5.0.5",
-    "react-redux-firebase": "^2.0.0-beta.8",
     "react-router": "^4.1.2",
     "react-router-dom": "4.1.1",
-    "react-router-redux": "^5.0.0-alpha.6",
-    "redux": "3.6.0",
-    "redux-thunk": "2.2.0",
     "styled-components": "^2.0.0",
     "xmlhttprequest": "^1.8.0"
   },