733e6fa14f
the MSVC and MipsPro warning stuff). As a result of this patch, simgear/sg_traits.h can be deleted. So can SGCMath.h, but I'll do that separately. There is one more 'mechanical' change to come - getting rid of SG_USING_STD(X), but I want to keep that separate from everything else. (There's another mechnica l change, replacing <math.h> with <cmath> and so on *everywhere*, but one step a t a time)
[ Nothing here at this time. ]