- entities can expose a state on their legend entry
- added "maze" and "room" generation types
- clowns fire HAHAHA at you
- added vector util functions
Added a whelk shell, and a basic level up system and XP curve.
Inventory, documentation, more.

- added a README
- added a basic inventory system, with UI
- bumping into mirrors costs self-esteem
- whelks restore imagination
readme update and jiggling Hahahahas
Lots of work on level generation.
Update submodule.
Fixup README.
Merge branch 'master' into gh-pages