Fix calendar item sorting bug
Template reformatting

Rewrite original 3-column template to use article class so it's more
flexible. Create new 4-column template based on the new template. Add
separate paginator TeX files to compile the single pages produced by
those templates.
Add helper scripts to make it easier to compile

Useful since addition of templatepaginator in the template rewrite. They
currently use my paths but I may generalize later.
Update README following template rewrites