fix(package): update react-select to version 2.3.0

Closes #173

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "react-router-dom": "^4.2.2",
     "react-rte": "^0.15.0",
     "react-scripts": "1.0.17",
-    "react-select": "^1.1.0",
+    "react-select": "^2.3.0",
     "redux": "^3.7.2",
     "redux-logger": "^3.0.6",
     "redux-thunk": "^2.2.0",