fixing travis

Author: Travis Mathis

package.json

@@ -21,7 +21,8 @@
     "jest": "^19.0.2",
     "react": "^15.5",
     "react-dom": "^15.5",
-    "react-test-renderer": "^15.5"
+    "react-test-renderer": "^15.5",
+    "react-addons-test-utils": "0.14.8"
   },
   "scripts": {
     "build": "./node_modules/.bin/babel ReactFileReader.js -o index.js",