Changelog for Asset Modeller 0.13.0

Track editing of cells by other users in table tree view (PR, #6595)
Do not show tree for new root asset creation row (PR, #6595)
If defined, use project name in backup export filename as prefix (PR, #6595)
Show scrollbar when list of backups is too long in table tree view (PR, #6595)
Show edge even if its last asset is disconnected while user is editing edges (PR, #6595)
Fix find_duplicates for asset with empty name (PR)
Add actions popup for type row with action for creating new root asset (PR, #6595)
Add action for deleting of root asset type to actions popup (PR, #6595)