Reduced size of transaction logs by not storing nil values in the property change values with keyed archiving.
Reduced size of transaction logs by not storing nil values in the property change values with keyed archiving.

realmacsoftware/ensembles,ChronicStim/ensembles,drewmccormack/ensembles,realmacsoftware/ensembles,ChronicStim/ensembles,drewmccormack/ensembles