NEW: addAction() implemented.
NEW: addAction() implemented.

addAction(‘refresh’,’column’) adds new column to crud, which calls
forth the model method.

xepan/atk4,svisystem/atk4,atk4/atk4,svisystem/atk4,svisystem/atk4,xepan/atk4,samratcis/atk4,samratcis/atk4,xepan/atk4,atk4/atk4,atk4/atk4,atk4/atk4,samratcis/atk4