Refactor AddNoteToChort, GetOrCreateChord, NotegroupManager, CollaborationManager, etc
variable name refactor
Refactor MeasureViewModel, MeasureManager, ChordViewModel, ChordManager,SpanManager, Notegroup, NotegroupManager, etc.
Remove SpacingMode.  Always propertional now.
Completely remove note overlay functionality
_Enum cleanup
Refactor NoteController.Create. Some Resharper refactors
Resharper refactois. Many small changes to case, spelling, etc
Retactor GetActiveChords(), IsPackedMeasure, etc. Also some ReSharper suggestions, Comment cleanup.
Resharper suggestions
Refactor IsPackedMeasure and IsActionable. Numerous Resharper suggestions.
Ditto
Packed Measure refinement. Many Resharper suggestions.
Incremental Resharper suggestions