chore: add development mode to babel (#403)

Author: DudaGod

.babelrc

@@ -21,6 +21,13 @@
                 "react",
                 "stage-0"
             ]
+        },
+        "development": {
+            "presets": [
+                "env",
+                "react",
+                "stage-0"
+            ]
         }
     }
 }

package.json

@@ -17,10 +17,10 @@
     "clean-fixtures": "rimraf test/func/fixtures/report",
     "precommit": "npm run lint",
     "prepublish": "cross-env NODE_ENV=production webpack --config=webpack.prod.js",
-    "start": "webpack-dev-server --config=webpack.dev.js --progress --colors --hot --inline",
+    "start": "NODE_ENV=development webpack-dev-server --config=webpack.dev.js --progress --colors --hot --inline",
     "commitmsg": "conventional-changelog-lint -e",
     "release": "standard-version",
-    "watch": "webpack --progress -d --config=webpack.dev.js --watch"
+    "watch": "NODE_ENV=development webpack --progress -d --config=webpack.dev.js --watch"
   },
   "repository": {
     "type": "git",