[Wishlist] Add a setting to hide paths that are not working

From: http://code.jeanlalonde.ca/folderspopup/#comment-15338

Add a setting to hide paths that are not working (for example, when a USB drive not connected to the computer). Also add an option to hide empty submenus (if all paths under a submenu are hidden also hide the submenu). Those needs to be 2 different settings.

 

2018-07-31 (JL)

This would slow down menu refresh too much for value for most users, IMO.