Organized the world package into subdirectories.
Refactored the types of tiles into subclasses.
Defined a class to handle each level of the game.
Configured each dungeon to utilize the levels.
Had the dungeons to prompt the level for layouts.
Moved the images for tiles into a subdirectory.
Began parsing the tilesets from an XML format.
Attempted to parse each tile into a type.
Loaded the tilesets through the templates.
Began working on loading a dungeon from XML.
Began loading the tiles of the room as well.
Randomized each room using templates.
Fixed the issue with collision against tiles.
Added another tileset as an example of loading.
Merge pull request #25 from jshiraef/master

implemented Rigidbody chain attachment
Attempted to refactor how tiles are generated.
Continued working on the construction of tiles.
Defined a class to manage all the assets.
Expanded to loading sets of tiles as assets.
Reimplemented subclasses for the tiles via groups.