Logic for source of data in bind operations.
|addBind||adds one more bound target|
|getBindData||fills the target object with data|
|removeBind||disables data binding|
|saveBatch||makes simultaneous saving of several components|
|setBindData||moves data from master to child|
|onBindUpdate||fires when data is changed in the slave and 'save()' is called to update the master.|