Move @types/react back to devDependencies

Author: cwmacdon

package.json

@@ -44,6 +44,7 @@
     "react-dom": ">=0.13"
   },
   "devDependencies": {
+    "@types/react": ">=15",
     "babel-core": "^6.22.1",
     "babel-jest": "^18.0.0",
     "babel-loader": "^6.2.1",
@@ -77,7 +78,6 @@
   },
   "dependencies": {
     "create-react-class": "^15.5.2",
-    "@types/react": ">=15",
     "object-assign": "^3.0.0",
     "prop-types": "^15.5.7",
     "react-onclickoutside": "^5.9.0"