modified:   LICENSE
	new file:   LICENSE~
	modified:   README.md
	new file:   README.md~
	new file:   USML-COPYRIGHT.txt
	new file:   boundary_grid_quad/boundary_grid_quad.h
	new file:   boundary_grid_quad/boundary_test.cc
	new file:   data_grid_quad/data_grid_quad.h
	new file:   data_grid_quad/datagrid_quad_test.cc
	new file:   quadtree/quad_test.cc
	new file:   quadtree/quadtree.cc
	new file:   quadtree/quadtree.h