new models for chunk tiles, elements, and items
removed unused route
adjusted the api to populate the related docs

- added some comments to the game.coffee
re added jQuery for its ajax functions
adding load/save chunks to game.coffee

- changed chunks export to toJSON
- changed the load end export to match the model
- working on saving
Made the other models child documents

updated the api to match
removed the old model files
compiled the coffee script