* Initial WIP
* Identical results with spreadsheet
* Improved and more robust smoothing by filtering points first
* Improved smoothing and more GUI
* Include mixed-label for smoothing threshold
* Implement WBS parameters track
* Much better alignment of tracks without flickering
* Don't replace user description when dragging and dropping tracks
* Fix missing OBG and SH curves
* Fix curve and track D&D
* Make sure parameter curves aren't WBS curves