https://docs.google.com/document/d/117Lt4TLQTT8vCEbvcIOWb-CDnTZlgO0VMYuDf4dX1Ig/edit#
* by-application (odoo-wise) grouping * use part of the accounting TOC defined on pad * support for "internal" tocs & fixup front toc * various changes and improvements to extensions May be missing: inherited document banners?