Fix __dirname & __filename for babel

Author: amoshydra

.babelrc

@@ -1,3 +1,4 @@
 {
-  "presets": ["es2015", "stage-0", "react"]
+  "presets": ["es2015", "stage-0", "react"],
+  "plugins": ["transform-dirname-filename"]
 }

package.json

@@ -35,6 +35,7 @@
   "devDependencies": {
     "babel-eslint": "^7.0.0",
     "babel-loader": "^6.2.5",
+    "babel-plugin-transform-dirname-filename": "^1.1.0",
     "babel-polyfill": "^6.16.0",
     "babel-preset-es2015": "^6.16.0",
     "babel-preset-react": "^6.16.0",

yarn.lock

@@ -498,6 +498,12 @@ babel-plugin-transform-decorators@^6.13.0:
     babel-template "^6.8.0"
     babel-types "^6.13.0"
 
+babel-plugin-transform-dirname-filename:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-dirname-filename/-/babel-plugin-transform-dirname-filename-1.1.0.tgz#b70422748f6f45e689a97fd6402ef6a543f35444"
+  dependencies:
+    estree-walker "^0.2.0"
+
 babel-plugin-transform-do-expressions@^6.3.13:
   version "6.8.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-do-expressions/-/babel-plugin-transform-do-expressions-6.8.0.tgz#fda692af339835cc255bb7544efb8f7c1306c273"
@@ -1839,6 +1845,10 @@ estraverse@~4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.1.1.tgz#f6caca728933a850ef90661d0e17982ba47111a2"
 
+estree-walker@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.2.1.tgz#bdafe8095383d8414d5dc2ecf4c9173b6db9412e"
+
 esutils@^2.0.0, esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"