chore(package): update react-native to version 0.46.4

Closes #7

Author: greenkeeper[bot]

package.json

@@ -50,7 +50,7 @@
     "in-publish": "^2.0.0",
     "mocha": "^3.0.2",
     "react": "^15.3.1",
-    "react-native": "^0.42.0",
+    "react-native": "^0.46.4",
     "react-native-mock": "^0.3.1",
     "rimraf": "^2.5.4",
     "safe-publish-latest": "^1.0.1"