remove quad_tests and bounce()
draw boxes on click
add quadtree lib
add quadtree display
clean up after depressing debugging experience
add tests for querying after inserts
clean up code for demo
revert 'contains' vs. 'overlaps' change
minor changes
remove sort_by_area
remove sort_by_area tests
mid-change commit
add todos and change usage of obj_to_node
some bugfixes, add children_only flag to query, make query grab own objects
remove topdown coarsen test
fix a querying bug
fix query bug, passes tests
change query to return lists
change tests to expect lists from query
update to expect lists from query