Fix TypeError: Class constructor cannot be invoked without 'new'

Author: ivankravets

.babelrc

@@ -10,6 +10,7 @@
     ]
   ],
   "plugins": [
-    "transform-class-properties"
+    "@babel/plugin-proposal-class-properties",
+    "@babel/plugin-transform-classes"
   ]
 }

package.json

@@ -62,11 +62,11 @@
   },
   "devDependencies": {
     "@babel/core": "^7.1.6",
+    "@babel/plugin-proposal-class-properties": "^7.1.0",
+    "@babel/plugin-transform-classes": "^7.1.0",
     "@types/node": "^8",
     "babel-eslint": "^8.0.2",
     "babel-loader": "^8.0.4",
-    "babel-plugin-transform-class-properties": "^6.24.1",
-    "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.7.0",
     "eslint": "^5.1.0",
     "eslint-import-resolver-webpack": "^0.10.0",