Merge pull request #1 from arreche/001-sign-up-compilation-issues

fix 001-sing-up compilation issues

Author: mrscobbler

001-sign-up/package.json

@@ -7,6 +7,7 @@
   },
   "dependencies": {
     "react": "^15.3.1",
+    "react-addons-css-transition-group": "^15.3.2",
     "react-dom": "^15.3.1"
   },
   "scripts": {