Sector.Reference.Title now only holds a reference to Grove.Name + Sector.Name. Therefore there is no need to update it when saving a Farm, since the Grove.Name can not change
Grove.Changed AddDenormalizedSectors to take ISector
Need to try to make AddDenormalizedSector update the sector parameter
Reverted to previous AddDenormalizedSector
AddDenormalizedSector now correctly updated the ISector sector parameter
Added Farm.FindGrove and SectorService.DeleteSector
Completed DeleteSector and DeleteGrove