SABnzbd 2.3.6 changelog

SABnzbd 2.3.6 brings the following changes:

- New option require_modern_tls forces TLSv1.2+ for SSL-connections
- RSS source icon on all tabs of feed overview
- RSS source icon now links to feed details page (if available)
- RSS feed URL's with commas would be wrongly escaped
- Common RSS login problems will show more appropriate error
- Added API-call to modify RSS-filters
- Exceeding disk space could result in endless retry-loop
- History Retry All would not retry failed NZB URL-fetches
- API-call to retry a job could result in unexpected error
- Assume correct SSL/certificate setup if test-host was disabled
- The par2-file creator was logged incorrectly
- Linux: Correct supported file extensions of tray icon
- Windows: Update MultiPar to 1.3.0.2
- Windows and macOS: Update UnRar to 5.61