Update babel to 7

Author: soyuka

.babelrc

@@ -1,10 +1,11 @@
 {
   "plugins": [
-    "transform-runtime",
-    "transform-flow-strip-types"
+    "@babel/transform-runtime",
+    "@babel/transform-flow-strip-types",
+    "@babel/plugin-proposal-export-default-from",
+    "@babel/plugin-proposal-class-properties"
   ],
   "presets": [
-    "es2015",
-    "stage-0"
+    "@babel/preset-env"
   ]
 }

package.json

@@ -16,25 +16,26 @@
   "author": "Kévin Dunglas",
   "license": "MIT",
   "devDependencies": {
-    "babel-cli": "^6.26.0",
-    "babel-core": "^6.26.3",
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.0.0",
     "babel-eslint": "^10.0.0",
-    "babel-jest": "^23.6.0",
-    "babel-plugin-transform-flow-strip-types": "^6.22.0",
-    "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-es2015": "^6.24.1",
-    "babel-preset-stage-0": "^6.24.1",
+    "babel-jest": "^24.0.0",
     "eslint": "^5.6.0",
+    "@babel/plugin-transform-flow-strip-types": "^7.0.0",
+    "@babel/plugin-transform-runtime": "^7.0.0",
+    "@babel/plugin-proposal-export-default-from": "^7.0.0",
+    "@babel/plugin-proposal-class-properties": "^7.0.0",
+    "@babel/preset-env": "^7.6.0",
     "eslint-config-prettier": "^3.1.0",
     "eslint-plugin-import": "^2.14.0",
     "eslint-plugin-prettier": "^2.6.2",
-    "jest": "^23.6.0",
+    "jest": "^24.0.0",
     "prettier": "^1.14.3",
     "tmp": "^0.0.33"
   },
   "dependencies": {
-    "@api-platform/api-doc-parser": "^0.7.3",
-    "babel-runtime": "^6.26.0",
+    "@api-platform/api-doc-parser": "^0.8.0",
+    "@babel/runtime": "^7.0.0",
     "chalk": "^2.4.1",
     "commander": "^2.18.0",
     "handlebars": "^4.0.12",