MMB click with no constraint selects a constraint right away (the axis selector doesn't flash on screen)
MMB click with a constraint removes the constraint
MMB click-drag in both case (with and without a constraint) uses the axis selector.
stopConstraint didn't remove the CON_SELECT flag, so cancelling transform while selecting a constraint and then reentering transform was funny. Fixed
Split the conversion fonctions and sorting functions from transform.c into transform_conversions.c
Update MSVC 6.0 projectiles and SConscript accordingly.
Editview still included transform.h, replaced that for BIF_transform.h, the external include.