Teleportation Upgrades

* All teleportation spells have been moved to a new teleportspell
superclass for categorization purposes.

* Rescue now gives a message to the room even if you go to an alternate
location.

* Rescue no longer goes to guild halls.

* Guildhall Recall is a new Kraanan 2 spell that functions much like
Rescue, except that it does not require karma and has its own system
setting for time delay. Its function is solely to return players to
their guild hall, if they have one. For players that don't have Kraanan,
Recall potions have also been added.

* Elusion now has a delay after you choose a destination, but before it
teleports you.

* Death Rift has been sped up a little, and uses the same delay
functions as the other teleport spells.

* All teleportation spells now cancel if you change rooms.