- fix incorrect /// doc in WorkflowTypeFieldAttribute
- converted Campus FieldType to store attribute value as Guid instead of id
- converted Campuses FieldType to store attribute value as comma-delimited Guids instead of comma-delimited ids
- converted BinaryFile, File, Image fieldType to store attribute value as Guid instead of id
- DefinedType, Component, Components, GroupType, GroupTypes where already storing attribute values as Guids, but cleaned up the code to make it more obvious that it was
- converted Group FieldType to store attribute value as Guid instead of id