Update Filezilla when exiting app

[el_pablo]

I execute Fz about once every few weeks and most of the time I feel that the pop-up screen asking to update is a kind of nagware.

There should be a button that gives the choice to the user to update Filezilla after exiting the application. This way, the user could still use Fz as usual and will only update the app after using it.

Check the Paint.net application, that is what it does.

My two cents!