update for Data changes. use a HashMap to remember previosly set units since we can't track which columns have been added/removed.
update for Data changes.
use a HashMap to remember previosly set units since we can't track which columns have been added/removed.

ajschult/etomica,etomica/etomica,etomica/etomica,ajschult/etomica,ajschult/etomica,etomica/etomica