ENH: Test workaround to hidden hierarchy bug
ENH: Implemented TreeModel
ENH: Implemented Projections, Virtual offset. Few bugs: ruler distance measurement doesnt return good value for virtual offset, vtkCollection leak.
BUG: Temporary workaround distance measurement issue
ENH: Implemented delete and clear. Leaks is induced by Annotation, not this module.
ENH: Cleaning code using QStandardItems and QStandardItemModel.
BUG: Need to fix leaks
ENH: Implemented remaining functions (selection, checkbox, delete, clear)
Update qSlicerCompathTreeItem.cxx
BUG: Fixed issue of visibility when virtual offset is 0 (value not updated anymore, so visibility never turned back on)
STYLE: Renamed module from Compath to VisuaLine