Merge pull request #12 from karol-majewski/update-microbundle

Fix the build task

Author: developit

package.json

@@ -45,7 +45,7 @@
     "eslint-config-google": "^0.9.1",
     "file-loader": "^2.0.0",
     "karmatic": "^1.2.0",
-    "microbundle": "^0.6.0",
+    "microbundle": "^0.9.0",
     "webpack": "^4.16.4"
   }
 }