[Map-Export]
- Fixed some texture scale issues
- Exporter now writes brush contents
- Some brushside generation fixes
- Selection feature [Export only certain parts of the map by defining a bounding box]
- mapexport_selectionMode [Enables selection mode]
- mapexport_selectionAdd [Adds a point to the bounding box (needs 2 in total)]
- mapexport_selectionClear [Reset bounding box]
- mapexport_brushMinSize [Only export complex brushes if their diagonal length is greater then this]
- mapexport_brushEpsilon1 [Brushside generation epsilon 1 (adv. only)]
- mapexport_brushEpsilon2 [Brushside generation epsilon 2 (adv. only)]
[UI]
- added changelog to the main menu
