fix(package): update electron-context-menu to version 0.13.0

Closes #23

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
   "license": "MIT",
   "dependencies": {
     "electron-config": "^1.0.0",
-    "electron-context-menu": "^0.9.1",
+    "electron-context-menu": "^0.13.0",
     "electron-dl": "^1.6.0",
     "element-ready": "^2.1.0",
     "mousetrap": "^1.6.0",