4.19.2 - screensaver: Prevent recursive calling of lock command - screensaver: Add lock-on-sleep property - screensaver: Update fallback list - screensaver: Prioritize user lock command - screensaver: Rewrite D-Bus proxies management - screensaver: Use reasonable timeout for methods that may not reply - screensaver: Remove support for gnome-screensaver (Fixes #62) - screensaver: Do not take into account empty commands - screensaver: Simplify Xfconf management - screensaver: Fix memory leak - screensaver: Fix typos - Update `.gitignore` - screensaver: Run lock command synchronously (Fixes #70) - I18n: Update po/LINGUAS list - I18n: Update po/LINGUAS list - screensaver: Add missing include guard - Translation Updates: Bulgarian, Chinese (China), Chinese (Taiwan), Dutch, English (United Kingdom), Estonian, French, German, Italian, Japanese, Korean, Lithuanian, Norwegian Bokmål, Polish, Portuguese, Portuguese (Brazil), Russian, Serbian, Slovenian, Swedish, Turkish, Ukrainian