[cadcdev-tiki] Loggerheads over loadjpg.cpp

[Dan P. <ba...@al...>]

I think some conflicting work was done here. :) I went to compile this on
Win32 just to see if it was still functional today, definitely isn't.. but
I've got it fixed up.

One small problem though: loadjpg.cpp has __BEGIN_DECLS and __END_DECLS
in the actual cpp file (looks like change 211 did it?) and jpeglib.h *also*
has the extern "C" stuff in the top. This apparently works fine on GCC
but not on MSVC. Is there a reason we need it in the cpp file, or was that
just you guys independently ending up doing the same thing? :)

Oh and there's a psycho, crazy number of warnings in the Vorbis code on win32.
So I may need to look at either #pragma turning off some warnings or just
lowering the warning level in the vcproj (I don't plan to actually go
fix them, though we could try updating to a new version of libvorbis).