rel_build_form_registration variable is not available for export as a feature component.

The "Enable form registration" settings is enabled by default and plays havoc with a couple of modules. Notably the ajax routines in the boxes module only when its enable. Which is no big deal cause it should be disable in a production env anyhow. So I would like to have disable by default in a Feature but its not showing up.

I think its best for this to be disabled by default, similar to devel_themer; use when needed and disable right after.