Disable auto updater

Hello,

Wand is closed, but its updater start automatically.

Please allow to disable auto start of the update when Wand is closed (also its background service and/or planned task, depending on what you created) in the Wand options page.

In attached files, please see a screenshot of my browser options about that.
A simple three options would be great:
- A: Update in background
- B: Update at start
- C: Update manually

Thanks!