chore(release): 5.4.2 [skip ci]

## [5.4.2](https://github.com/react-native-community/react-native-webview/compare/v5.4.1...v5.4.2) (2019-03-21)

### Bug Fixes

* **types:** Add missing type definitions of the methods ([#442](https://github.com/react-native-community/react-native-webview/issues/442)) ([54268ff](https://github.com/react-native-community/react-native-webview/commit/54268ff))

package.json

@@ -8,7 +8,7 @@
     "Thibault Malbranche <malbranche.thibault@gmail.com>"
   ],
   "license": "MIT",
-  "version": "5.4.1",
+  "version": "5.4.2",
   "homepage": "https://github.com/react-native-community/react-native-webview#readme",
   "scripts": {
     "ci": "CI=true && yarn lint && yarn test",