Finalize persistent partition support for Debian and Ubuntu:
- Debian with persistence should work out of the box with any recent "Debian Live" ISO.
- Ubuntu with persistence should also work *IF* using a post 2019.08.01 ISO. Note that,
because of bug #1489855, trying to use persistence with Ubuntu ISOs that were released
before August 2019 will only result in rescue mode during boot - You have been warned!
- Other distros may work with persistence as long as they use a Debian-like or Ubuntu-like
method, and, in the case of Ubuntu-like, if they use casper with the #1489855 bugfix.
Add cheat mode (<Alt>) to switch between percent/speed/ETA on *some* operations [EXPERIMENTAL]
Report SuperSpeed+ devices in the log (Come on USB-IF, just add "Ludicrous Speed" already!)
Fix UI checkboxes (Extended label, Fixes for old BIOSes) being cleared on START
Fix "Can't mount GUID volume" regression when creating Windows To Go drives
Fix "Volume label is invalid" error with empty labels on Windows 7
Fix stale progress bar during standalone ext2/ext3 formatting
Disable ISO mode for Pop_OS
Other cosmetic and internal improvements