Remove react-lifecycles-compat to reduce bundle size impact.

- Also bump React, React Native, and babel devDependencies

babel.config.js

@@ -0,0 +1,7 @@
+// eslint-disable-next-line import/no-commonjs
+module.exports = function(api) {
+  api.cache(true);
+  return {
+    presets: ['module:metro-react-native-babel-preset'],
+  };
+};

example/package.json

@@ -24,10 +24,9 @@
     "react-navigation-tabs": "^1.0.2"
   },
   "resolutions": {
-    "**/react": "16.3.1",
-    "**/prop-types": "15.6.0",
-    "**/react-lifecycles-compat": "3.0.4",
-    "**/hoist-non-react-statics": "2.5.0"
+    "**/react": "16.6.3",
+    "**/prop-types": "15.6.2",
+    "**/hoist-non-react-statics": "2.5.5"
   },
   "devDependencies": {
     "babel-preset-expo": "^5.0.0"

package.json

@@ -15,7 +15,7 @@
     "test": "jest",
     "lint": "eslint .",
     "format": "eslint . --fix",
-    "babel": "babel --no-babelrc --plugins=transform-es2015-block-scoping,transform-es2015-modules-commonjs,transform-react-jsx,transform-class-properties,transform-object-rest-spread,transform-flow-strip-types src --copy-files --out-dir dist --ignore '**/__tests__/**','*.ts'",
+    "babel": "babel --no-babelrc --plugins=@babel/transform-block-scoping,@babel/transform-modules-commonjs,@babel/transform-react-jsx,@babel/proposal-class-properties,@babel/proposal-object-rest-spread,@babel/transform-flow-strip-types src --copy-files --out-dir dist --ignore '**/__tests__/**','*.ts'",
     "tsc": "tsc",
     "build": "yarn babel --out-dir dist && yarn tsc",
     "dev": "yarn babel --watch src --out-dir example/node_modules/@react-navigation/core/dist",
@@ -43,37 +43,39 @@
   "homepage": "https://github.com/react-navigation/react-navigation-core#readme",
   "dependencies": {
     "create-react-context": "0.2.2",
-    "hoist-non-react-statics": "^3.0.1",
+    "hoist-non-react-statics": "^2.5.5",
     "path-to-regexp": "^1.7.0",
     "query-string": "^6.2.0",
-    "react-is": "^16.5.2",
-    "react-lifecycles-compat": "^3.0.4"
+    "react-is": "^16.6.3"
   },
   "devDependencies": {
-    "babel-cli": "^6.26.0",
-    "babel-jest": "^22.4.1",
-    "babel-plugin-transform-class-properties": "^6.13.0",
-    "babel-plugin-transform-es2015-block-scoping": "^6.26.0",
-    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
-    "babel-plugin-transform-flow-strip-types": "^6.22.0",
-    "babel-plugin-transform-object-rest-spread": "^6.13.0",
-    "babel-plugin-transform-react-jsx": "^6.18.0",
-    "babel-preset-react-native": "^4.0.0",
+    "@babel/cli": "^7.2.3",
+    "@babel/core": "^7.3.4",
+    "@babel/plugin-proposal-class-properties": "7.3.4",
+    "@babel/plugin-proposal-object-rest-spread": "7.3.4",
+    "@babel/plugin-transform-block-scoping": "7.3.4",
+    "@babel/plugin-transform-modules-commonjs": "7.2.0",
+    "@babel/plugin-transform-flow-strip-types": "7.3.4",
+    "@babel/plugin-transform-react-jsx": "7.3.0",
+    "babel-core": "7.0.0-bridge.0",
+    "babel-eslint": "^10.0.1",
+    "babel-jest": "^24.1.0",
+    "metro-react-native-babel-preset": "^0.49.2",
     "conventional-changelog-cli": "^2.0.5",
     "eslint": "^4.12.1",
     "eslint-config-satya164": "^1.0.1",
     "eslint-plugin-react-native-globals": "^0.1.0",
     "husky": "^1.1.2",
-    "jest": "^22.1.3",
-    "jest-expo": "^30.0.0",
-    "prettier": "^1.8.2",
-    "react": "16.3.1",
-    "react-dom": "16.3.1",
-    "react-native": "^0.55.4",
-    "react-test-renderer": "16.3.1",
+    "jest": "^24.1.0",
+    "jest-expo": "^32.0.0",
+    "prettier": "^1.13.6",
+    "react": "16.6.3",
+    "react-dom": "16.6.3",
+    "react-native": "^0.58.6",
+    "react-test-renderer": "16.6.3",
     "release-it": "^7.6.1",
-    "ts-jest": "^23.10.4",
-    "typescript": "^3.1.3"
+    "ts-jest": "^24.0.0",
+    "typescript": "^3.3.3333"
   },
   "peerDependencies": {
     "react": "*"

src/navigators/createNavigator.js

@@ -1,5 +1,4 @@
 import React from 'react';
-import { polyfill } from 'react-lifecycles-compat';
 import invariant from '../utils/invariant';
 
 function createNavigator(NavigatorView, router, navigationConfig) {
@@ -70,7 +69,7 @@ function createNavigator(NavigatorView, router, navigationConfig) {
     }
   }
 
-  return polyfill(Navigator);
+  return Navigator;
 }
 
 export default createNavigator;