Working on presentation-eppo schema
Create initial presentation eppo schema

Create presentation eppo schema
Update presentations scripts to use it
Update format-html script to read it
Get it all to build correctly.
Removing xref as an element under li

Fixing scripts that were generating it
Fixing schema
Adding specific structures for header items

Updating schema and scripts.
Adding validation of presentation files to build
Fix errors in schema and header script
Adding explicit page TOC support

Schemas
Presentation scripts
Format script
Formalize byline model
Couple of missed items from last commit
Doing the author name properly via synthesis
Renaming subject affinity to subject
Renaming subject to annotation where appropriate
Putting catalogs in the right places

And adding a single master catalog to point to the rest
Removing unneeded files
Removing qa from presentation schema and format script
Adding css-tree tool

In preparation for adding tree support to presentation scripts, html
format.
Implementing tree for TOC
Cosmetic change to TOC formatting
Revert "Cosmetic change to TOC formatting"

This reverts commit 085ccd85703e065cabc948fba102aa509249e711.
Cosmetic changes to TOC formatting

That don't break things this time.