Initial work for new model handling
Don't return the cached bounding box but clone it
Don't return the cached bounding box but clone it
Merge branch 'master' into xs-model
Fix regression causing complete_objects to skip Z moves after first object is complete. Includes regression test. #1582 #1541
Merge branch 'stable'
Initial work for porting Slic3r::Config to XS
Raise version number in master branch
Fixed regression in object placement in STL export. #1552
Merge branch 'stable'
More work for refactoring add_model() to add_model_object(). Tests pass
Refactoring. Use Model class for representing the plate in GUI
Make quick_slice() work with new model handling
Merge branch 'xs-model'

Conflicts:
	lib/Slic3r/Model.pm
Use 0,0 for default instance
Some initial work for stateful Print object
Move centering outside the Print object
Some initial work for adapting plater to the new centering workflow
Finished updating plater to the new centering logic
More work for updating the embedded Print object when Model is changed in plater