Elkonia: Phantom Keep

Housekeeping release - no gameplay changes.

Internal development comments have been removed from the pack files. Every function, recipe, structure and worldgen entry behaves exactly as before; only comments and metadata that were never meant to ship have gone.

Safe to update over the previous version. No world changes, no migration.

The bundled function reference (documentation.html) also had three faults fixed: it was titled "src", its version header was thirteen revisions out of date, and one sentence referred to internal tooling.