fix(package): update react-navigation to version 2.11.2

Closes #2724

Author: greenkeeper[bot]

package.json

@@ -113,7 +113,7 @@
     "react-native-tableview-simple": "0.17.5",
     "react-native-typography": "1.3.0",
     "react-native-vector-icons": "5.0.0",
-    "react-navigation": "2.10.0",
+    "react-navigation": "2.11.2",
     "react-navigation-material-bottom-tabs": "0.3.0",
     "react-redux": "5.0.7",
     "redux": "3.7.2",