Replace arrayByAddingObject with NSMutableArray addObject
Replace arrayByAddingObject with NSMutableArray addObject

andyvand/AppCore,cornelltech/AppCore,ResearchKit/AppCore,EricSiegNW/AppCore,chb/AppCore,Erin-Mounts/AppCore,Sage-Bionetworks/AppCore,Erin-Mounts/AppCore,jwarmkessel/AppCore,EricSiegNW/AppCore,Sage-Bionetworks/AppCore