Clean up get_name function.
Remove newlines.
Remove unused variable.
Return tileset in its own callback.
Load only one map while performing tests.
Avoid wasting local storage space by storing blockset-tileset1 canvases independant of tileset2 canvases.
Allow loading of all maps.
Fix names so that different blocksets can share the same canvases.
Reduce duplicate code.
Add concerns to README.
Remove old TODO.