fix(package): update menubar to version 6.0.1

Closes #175

Author: greenkeeper[bot]

package.json

@@ -45,7 +45,7 @@
     "greenkeeper-lockfile": "^1.7.2",
     "identity-obj-proxy": "^3.0.0",
     "jest": "^22.1.4",
-    "menubar": "^5.2.3",
+    "menubar": "^6.0.1",
     "minimist": "^1.2.0",
     "prop-types": "^15.5.8",
     "react": "^16.0.0",