Merge branch 'master' into greenkeeper/mocha-4.0.0

Author: akikoo

package.json

@@ -14,15 +14,15 @@
   "dependencies": {
     "prop-types": "^15.5.10",
     "react": "^15.6.0",
-    "react-dom": "^15.6.0"
+    "react-dom": "^16.0.0"
   },
   "devDependencies": {
     "babel-core": "^6.16.0",
     "babel-preset-es2015": "^6.16.0",
     "babel-preset-react": "^6.16.0",
     "jsdom": "^11.0.0",
     "mocha": "^4.0.0",
-    "sinon": "^3.0.0",
+    "sinon": "^4.0.0",
     "unexpected": "^10.18.0",
     "unexpected-sinon": "^10.1.1"
   }