minor bugfix with the calculating of divides
Offset handling fix
Logical line remodeld
Deletete zelf maar
Fixed the lasting bug of the 'moving' quotients
add tablet layout.
Lots of refactoring and make it easier to work with
Bounding boxes are now drawn for debug purposes.

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Issue #20 fixed and toString() implemented in some classes.