rusticlone: äldre versioner att ladda ner

Fixed
- Use dark and rounded look for the Windows tray menu (#79)
Backup
- Fall back to the next repository when a restore fails (#82)
- Say where a restore looked when no repository could be read (#77)
- Find another computer's snapshots when restoring (#73)
- Restore another system's folders only into a folder (#72)
- Restore snapshots made on Windows on macOS and Linux (#71)
Web
- Show the fields of the choices Firefox restores in the setup form (#95)
- Read the backup folder in the setup form as rustic does (#94)
- Save each setup folder as its own backup entry (#81)
- Hide Copy and Restore when they have nothing to do (#80)
- Refuse a backup folder inside a source or holding other files (#75)
- Treat browsers behind a proxy or tunnel as remote (#74)
Performance
Web
- Render open pages again when what they show changes with time (#97)

Fixed
- A long silent rustic call is no longer stopped as stalled on macOS and Windows (#43)
- Hooks that print no longer break reading rustic's output (#40)
- Stop the server on Ctrl-Break on Windows (#36)
- Commands no longer hang on Windows while the server runs (#35)
- Show which run holds the lock that a run waits for (#26)
Backup
- A killed run leaves no rustic running on Windows (#38)
Cli
- Draw notify, install and update as step trees (#54)
Install
- Let package manager handle updates (#41)
- Sign the macOS app again after an update replaces its executable (#19)
Web
- Browse, search and download Windows snapshots (#37)
Translated
- Translate into Italian (#25)