RELEASE 4.3
NEW: 'pak -Syu' updates core system packages as well if new versions were found in POLAUR (disabled by default)
NEW: pak.conf option - upd_repo_pkgs_from_polaur=0/1
Changed: 'pak -C' to reflect above ^
Added: checking for working internet connection
Reverted: 'pak -Syyu' works as before (requested by LinGruby #polaur)
Changed: 'pak -Pl' prints available repositories
Changed: 'pak -Pl repository' prints available packages
Changed: 'pak --vsc package' checks only for given package
Changed: warning for unsupported vcs packages (requested by pavbaranov #polaur)
Updated: manpages, polish translation, translation template