chore(release): 5.3.0 [skip ci]

# [5.3.0](https://github.com/react-native-community/react-native-webview/compare/v5.2.5...v5.3.0) (2019-03-07)

### Features

* **WKWebView:** add prop `directionalLockEnabled` for iOS ([#389](https://github.com/react-native-community/react-native-webview/issues/389)) ([08cc600](https://github.com/react-native-community/react-native-webview/commit/08cc600))

package.json

     "Thibault Malbranche <malbranche.thibault@gmail.com>"
   ],
   "license": "MIT",
-  "version": "5.2.5",
+  "version": "5.3.0",
   "homepage": "https://github.com/react-native-community/react-native-webview#readme",
   "scripts": {
     "test:js": "jest",