bounds, scaling and rotate fixes

proper application of scales and translations on aabb and oabb.

don't bounds check deleted objects.

debug draw oabb and aabb on MoveTool
removed pivot from transform

Removed the pivot from the transform.  The position of a shape is now
set only in the transform (the center of the shape).
more snapping

Added snapping to move
Now draw lines when snapping occurs
Fixed translation bugs causing misaligned bounds after rotation.