Implement hierarchy wizard
Enable/disable debug menu item
Bugfix: handle CSVs with schema problems
Bugfix: handle CSVs with schema problems
Bugfix: correctly reset project files
Allow loading/generating hierarchies for all attributes
Bugfix: correctly import hierarchies
Implement backwards compatibility when loading projects
Bugfix: load/save hierarchies
Bugfix: store hierarchies
Bugfix: show data in debug console
Bugfix: format output of debug console
Bugfix: prevent error when printing debug data
Bugfix: show correct hierarchy in HierarchyView
Cleanups
Remove debugging stuff
Rework project deserialization
Bugfix: update min&max when updating hierarchies
Try to fix bugs with min/max generalization
Implement compatibility when loading 1.0 project files