fix: target ES5 for production code

Fix #758

Author: gregberge

Diff for: package.json

@@ -48,7 +48,7 @@
     "husky": "^0.14.3",
     "jest": "^22.0.4",
     "lerna": "^2.4.0",
-    "lerna-tools": "^0.0.3",
+    "lerna-tools": "^1.0.0",
     "lint-staged": "^6.0.0",
     "mocha": "^4.0.1",
     "prettier": "^1.9.2",

Diff for: packages/react-hot-loader/src/index.js

@@ -1,11 +1,7 @@
-/* eslint-disable global-require, import/no-mutable-exports */
-
-let exportedModule
+/* eslint-disable global-require, import/no-mutable-exports, no-var */
 
 if (!module.hot || process.env.NODE_ENV === 'production') {
-  exportedModule = require('./index.prod')
+  module.exports = require('./prod/index.prod')
 } else {
-  exportedModule = require('./index.dev')
+  module.exports = require('./index.dev')
 }
-
-module.exports = exportedModule

Diff for: packages/react-hot-loader/src/patch.js

@@ -1,11 +1,7 @@
 /* eslint-disable global-require, import/no-mutable-exports */
 
-let exportedModule
-
 if (!module.hot || process.env.NODE_ENV === 'production') {
-  exportedModule = require('./patch.prod').default
+  module.exports = require('./prod/patch.prod')
 } else {
-  exportedModule = require('./patch.dev').default
+  module.exports = require('./patch.dev')
 }
-
-export default exportedModule

Diff for: packages/react-hot-loader/src/patch.prod.js

@@ -0,0 +1,4 @@
+{
+  "babelrc": false,
+  "presets": [["env", { "loose": true }], "react"]
+}

Diff for: packages/react-hot-loader/src/prod/.babelrc

@@ -0,0 +1 @@
+export default null

Diff for: packages/react-hot-loader/src/AppContainer.prod.js renamed to packages/react-hot-loader/src/prod/AppContainer.prod.js

@@ -3656,9 +3656,9 @@ left-pad@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.2.0.tgz#d30a73c6b8201d8f7d8e7956ba9616087a68e0ee"
 
-lerna-tools@^0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/lerna-tools/-/lerna-tools-0.0.3.tgz#8c012d9345a7885ae253bce74ebb0cd72f266782"
+lerna-tools@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lerna-tools/-/lerna-tools-1.0.0.tgz#137bf98cd34e51289e779dcca61bc77162400fcf"
   dependencies:
     chalk "^2.1.0"
     glob "^7.1.2"