Enhanced documentation for prototype loading.
Defaulting of sandbox mode based on Overall/RunScripts permission.
Migrate existing template instances to use sorted attributes. (Newly created instances were alteady using sorted attributes.)
Better robustness in case of broken builder/publisher template instance configurations.
More gracefully handle missing auxiliary model in the nested auxiliary control.
The “metamodel” system was removed from this plugin. The only visible effect should be that the “Model Transformer” and “Select another model” attribute types are gone; regular templates should not have been using these anyway.