fix basename

added basename since windows doesn't have it

changed the way config dialog gets key input from user so it works in qt5

Renamed the OpenFile class to LDOpenFile as MinGW doesn't appear to like the former name

update project file to only use no overpainting under Windows and -lGLU under *nix

Added support for overpaint-less mode since I'm having serious trouble with that

Show the version info in the about dialog properly

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mercurial