- changed tabs to spaces and DOS line endings to Unix
(except in CBot and metafile)
- changed language to English
- fixed #include <d3d.h> in d3dengine.h
- added (very basic) SDL template in CApplication and CEngine
- split project into two targets: colobot_old (dependent on DirectX and WinAPI)
and colobot_new (dependent on SDL and OpenGL)
- moved sound.h/cpp to old/ and created new template in Snd namespace
- added platform-independent dialog boxes in app/system.h/cpp