created check-in category for check-in WF, ordered check-in groups, and corrected age ranges for preschool-nursery groups.
Added new unit test to verify that person's graduation date reflects the mm/dd of the GradeTransitionDate.
Adding new "group" filters to filter by age and grade, also updated/corrected AbilityLevelSelect block to save value like the "CRM - Person Detail - Attribute Values" block does.