Update npm dependencies

package.json

     "postis": "2.2.0",
     "react": "15.6.1",
     "react-dom": "15.6.1",
-    "react-i18next": "4.7.0",
+    "react-i18next": "4.8.0",
     "react-native": "0.42.3",
-    "react-native-background-timer": "1.1.0",
-    "react-native-fetch-blob": "0.10.6",
+    "react-native-background-timer": "1.2.0",
+    "react-native-fetch-blob": "0.10.8",
     "react-native-img-cache": "1.4.0",
-    "react-native-immersive": "0.0.5",
-    "react-native-keep-awake": "2.0.4",
+    "react-native-immersive": "1.0.0",
+    "react-native-keep-awake": "2.0.5",
     "react-native-locale-detector": "1.0.1",
     "react-native-prompt": "1.0.0",
-    "react-native-vector-icons": "4.2.0",
+    "react-native-vector-icons": "4.3.0",
     "react-native-webrtc": "jitsi/react-native-webrtc",
-    "react-redux": "5.0.5",
+    "react-redux": "5.0.6",
     "redux": "3.7.2",
     "redux-thunk": "2.2.0",
     "retry": "0.6.1",
     "eslint": "3.19.0",
     "eslint-plugin-flowtype": "2.30.4",
     "eslint-plugin-import": "2.7.0",
-    "eslint-plugin-jsdoc": "3.1.1",
+    "eslint-plugin-jsdoc": "3.1.2",
     "eslint-plugin-react": "6.10.3",
     "eslint-plugin-react-native": "3.0.1",
     "expose-loader": "0.7.3",