travel requirements that can disallow some things from traveling some portals
CharacterSenseMapping actually uses the ORM, not the engine
convenience methods
Mostly refactoring, though this will also make it easier to do callbacks
make ELiDE launchable as python -m ELiDE
atlas-ify the dungeon tiles
atlas-ify amulets
atlas-ify armor
atlas-ify book
atlas-ify food
atlas-ify gem
atlas-ify misc
atlas-ify potion
atlas-ify ring
atlas-ify scroll although it seems a bit silly...
atlas-ify wand
atlas-ify weapon
couldn't think of why I needed these subdirs
Update README to better reflect the current state of the project.