by Paul Fernhout, Pointrel Research
pdfernhout@kurtz-fernhout.com

Uses gradient method of search
switches between seakign known packages (or bases if none)
and delivering packages.

Just saw the announcement sunday -- so just a day to do this!
Was fun. Can see many ways to improve with more gradients -- 
like for other robots to avoid or pursue. 
Didn't have time to get in pursuit of packages onboard other robots.

Consider this availabe under GPL license.
