Upgrade to babel 7

Unblock consumers updating to Babel 7 which patches some bugs that
can prevent some users updating to Node 10.

Author: Michael Mifsud

.all-contributorsrc

@@ -89,6 +89,15 @@
         "code",
         "test"
       ]
+    },
+    {
+      "login": "xzyfer",
+      "name": "Michael Mifsud",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/579928?v=4",
+      "profile": "https://github.com/xzyfer",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "repoType": "github"

.babelrc

@@ -1,3 +1,3 @@
 {
-  "presets": [["env", { "targets": { "node": "4" } }], "flow"]
+  "presets": [["@babel/preset-env", { "targets": { "node": "4" } }], "@babel/preset-flow"]
 }

examples/with-flow/.babelrc

@@ -1,17 +1,16 @@
 {
   "presets": [
-    ["env", {
+    ["@bable/preset-env", {
       "targets": {
         "browsers": ["last 2 versions", "safari >= 7"]
       }
     }],
-    "react"
+    "@babel/preset-react"
   ],
   "plugins": [
-    "transform-class-properties",
+    "@babel/plugin-proposal-class-properties",
     ["react-intl-auto", {
       "removePrefix": "app/"
     }]
   ]
 }
-

examples/with-flow/package.json

@@ -12,18 +12,20 @@
     "react-intl": "^2.4.0"
   },
   "devDependencies": {
-    "babel-cli": "^6.26.0",
-    "babel-loader": "^7.1.2",
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.0.0",
+    "@babel/plugin-proposal-class-properties": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/preset-react": "^7.0.0",
+    "babel-loader": "^8.0.0",
     "babel-plugin-react-intl": "^2.3.1",
     "babel-plugin-react-intl-auto": "*",
-    "babel-plugin-transform-class-properties": "^6.24.1",
-    "babel-preset-env": "^1.6.0",
-    "babel-preset-react": "^6.24.1",
     "extract-react-intl": "^0.3.1",
     "extract-react-intl-messages": "^0.6.0",
     "flow-bin": "^0.54.1",
     "webpack": "^3.5.6",
     "webpack-dev-server": "^2.7.1",
-    "write-json-file": "^2.2.0"
+    "write-json-file": "^2.2.0",
+    "@babel/preset-flow": "^7.0.0"
   }
 }