TYPO3 Core

The v6.2 / v7 version of ext:form can actually run happily in parallel to new ext:form of v8 (hopefully).

Task is to extract ext:form in the status before the new form was merged off to github, to then rename it to "form_legacy" or similar and to load extjs in formEngine for this extension somehow.

Then, have an upgrade wizaard that checks if ext:form is actually loaded and if content elemest with old ext:form list_type exist, and if so, allow to download & install the 'legacy_form' version.

This way, we may have full compat for old old-ext-form base forms.