Some new stuff

Skeeve has kindly written two site pages for us: IRC help and a links page - something TWHL has needed for ages.

I've also finally written a Map Vault map delete function, so you can delete any maps you don't want in the Vault.

Contests... there've been so many requests I fear for my life now As a result, a new one has been launched: Trapped. You've only got two weeks, so get started right away!