added support for RN 0.57.3

Author: mCodex

README.md

@@ -14,6 +14,10 @@ This is a simple `react-native init` project with some libraries. This project i
 * ESlint
 * Airbnb's ESlint rules
 
+## Description
+
+Starting a new project can take some time to configure project structure, libraries and so on... So, I decided to make this starter kit open source for anyone who needs a little help.
+
 ## Download
 
 You can download this boilerplate from command line:
@@ -36,6 +40,8 @@ cd ios/ && pod install
 cd .. && yarn start
 ```
 
-## Description
+## Tips
 
-Starting a new project can take some time to configure project structure, libraries and so on... So, I decided to make this starter kit open source for anyone who needs a little help.
+### jsc-android
+
+Android's react-native support is based on an old version of jsc-android (November of 2014) which is, basically, the JavaScript interpreter for Android, but we can update it ourselves to gain performance improvements. I've been doing it for a while and I've seen performance improvements. On the other hand, to update jsc-android you will have to support only versions of Android> 5.0, which nowadays seems fine. If you would like to give it a try, check this [NPM package](https://www.npmjs.com/package/jsc-android).

package.json

@@ -8,12 +8,12 @@
   },
   "dependencies": {
     "@redux-offline/redux-offline": "^2.4.0",
-    "react": "16.5.0",
-    "react-native": "^0.57.2",
-    "react-native-navigation": "^1.1.484",
+    "react": "16.6.0-alpha.8af6728",
+    "react-native": "^0.57.3",
+    "react-native-navigation": "^1.1.489",
     "react-redux": "^5.0.7",
-    "redux": "^4.0.0",
-    "redux-saga": "^0.16.0"
+    "redux": "^4.0.1",
+    "redux-saga": "^0.16.2"
   },
   "devDependencies": {
     "@babel/core": "7.0.0-beta.56",
@@ -22,15 +22,15 @@
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",
     "babel-jest": "^23.6.0",
-    "metro-react-native-babel-preset": "0.43.5",
+    "metro-react-native-babel-preset": "^0.48.1",
     "eslint": "^4.19.1",
-    "eslint-config-airbnb": "^17.0.0",
-    "eslint-plugin-import": "^2.12.0",
+    "eslint-config-airbnb": "^17.1.0",
+    "eslint-plugin-import": "^2.14.0",
     "eslint-plugin-jest": "^21.17.0",
-    "eslint-plugin-jsx-a11y": "^6.0.3",
+    "eslint-plugin-jsx-a11y": "^6.1.2",
     "eslint-plugin-react": "^7.9.1",
-    "jest": "^23.4.0",
-    "react-test-renderer": "^16.4.1",
+    "jest": "^23.6.0",
+    "react-test-renderer": "^16.5.2",
     "redux-logger": "^3.0.6"
   },
   "jest": {