new file:   matlab/CirclePlotter.m
	new file:   matlab/beacon_location.m
	new file:   matlab/plot_ranges.m
new file:   papers/Jakuba_JFR2008.pdf
	new file:   papers/Whitcomb_UUST1999.pdf
	new file:   papers/Yoerger_IJRR2007.pdf
	modified:   todo.txt