This also restores preAction and preReceiveAction effects, which were
previouosly ignored. To support this, findResult and mapUntil were
added to the prototype for arrays. These allow for functions with
side effects to be searched or mapped over.

Everything is now a Container; Containers have a set
of capabilities that describes what they can do

Control is now determined by whether or not something is viewed
in third person.

The perks aren't visible yet. There's only one perk: Ravenous,
which makes the dire wolf even better at eating you.

Changing a creature's mass sets its base mass so that, after
effects are applied, its mass is correct.

Vue does not play nicely with Maps.

Weapons are a now kind of Equipment; Equipment goes into a specific
slot.