Continuing with our theme of rewriting all the horrible and ugly that exists in our codebase, I've gone and completely rewritten all the code handling player death.

This is largely a backend change so you shouldn't notice too much different except maybe messages happening in a different order. That said, there have been some changes as follows:
- Fixed a bug with vampires losing full experience on starburst deaths.
- You'll no longer lose defences when dying in the arena.
- You can see deathsights if you're in the same room as the victim now (killer and victim still don't).
- Abilities like starburst/rebirth that bring you back to life now have their own unique deathsight message.
- There's now a GMCP message sent along with deathsight messages.

As usual, file a bug if anything is amiss.

Penned by my hand on the 6th of Variach, in the year 446 MA.