fixed one small bug with VTBuilder reading BT with bogus .prj
fixed one small bug with VTBuilder reading BT with bogus .prj

markraz/vtp,seanisom/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,nakijun/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,markraz/vtp,seanisom/vtp,nakijun/vtp,seanisom/vtp,nakijun/vtp,markraz/vtp