Added SDL_msctf.h for MinGW.
Added a few casts to fix warnings on MinGW.

Changed comment to c-style and removed some end-of-line whitespace.

- updated shape vcproj and add it to VS2008 solution
- minor changes (i.e. typecasting) to get rid of compiler warnings in VS

There may be a better way to do this.

--HG--
rename : VisualC/SDL.sln => VisualC/SDL_VS2005.sln