Also, I would like to use this opportunity to thank Siberian Tiger from DTD Team for helping me with SVN builds for more than two years. You made my constant wrestling with the code a much less tedious process.
Draw Settings panel: added "All" buttons to "Fill Selection with Textures" and "Remove Textures form Selection" groups
Export to .obj: fixed a crash when trying to export an unsaved map.
Texture preview are now created ~25% faster.