• reworked map-packs widget from list view to tree view to show a directory hierarchy
• removed "Current preset" mechanic and replaced it by disabling sub-windows to prevent user making changes that are not saved anywhere
• map file from map view can now be dragged&dropped into the mod list
• closing the SetupDialog with X button in the corner will now cancel all your changes
• selected map file is now saved on quit and restored on next start
• added an "About" dialog with information about the application