Create package.json

Author: davidfurlong

package.json

@@ -48,6 +48,7 @@
     "karma-webpack": "^2.0.1",
     "mocha": "^3.0.0",
     "pretty-bytes": "^4.0.2",
+    "prop-types": "^15.5.10",
     "react": "^15.4.1 || ^0.14.7",
     "react-dom": "^15.3.0 || ^0.14.7",
     "readline-sync": "^1.4.4",