Fix #2355 previous fix wasn't entirely correct - thanks Thomas Hipp
Fix #2335 : IPC lockfile issue preventing start of deluge-gtk
Fix #2365 : Hiding Progress column generates TypeError
Fix #2367 :  Private Flag not showing as ticked/checked in DelugeStart theme
Fix #2371 : Add StartupWMClass to desktop file
Fix #2381 : Allow silent uninstall for Windows package