Refactor into existing or new methods where possible.
Refactor into existing or new methods where possible.

experteer/awesome_nested_set,collectiveidea/awesome_nested_set,sximba/rational_nested_set,marutosi/awesome_nested_set,sximba/rational_nested_set,tcjuan/awesome_nested_set,markmercedes/awesome_nested_set,petergoldstein/awesome_nested_set,rbo7nik/awesome_nested_set,oesgalha/awesome_nested_set