Glossary links reference non-existent primer pages

[mathghamhain]

If you use the Glossary Links feature, you'll find the results it gives you include many links to primer pages which are no longer online and yield 404 errors.

Some of the old primer pages are archived here:
https://archive.is/GmcAr
https://archive.is/heraldry.sca.org

We could extract that information and repost it, or find new primer pages that correspond to each of the old ones, or just remove the primer links from the glossary results.