always fire a changed data event when new Data comes in.  This allows things to resync.  Without this the first Data triggers a data changed event, subsequent new Data doesn't fire an event, but the next chunk of the first Data does.
always fire a changed data event when new Data comes in.  This allows things to resync.  Without this the first Data triggers a data changed event, subsequent new Data doesn't fire an event, but the next chunk of the first Data does.

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