[EM] updated graphs

[Brian Olson]

http://bolson.org/voting/sim_one_seat/www/spacegraph.html

added:
Approval (Zero Info Strategy)
Approval (With Poll)
Vote For And Against

ToDo:
retry the Approval methods with candidate order reversed to see what  
happens if ties break the other way -
OR/AND
add random tie-breaking into the zero-info strategy?


I still have my computers running more sims.
In the pipeline is
	the 3 point widely spread triangle example.
	a factor of 10 zoom-out to see if there are any odd fringe effects  
away from the close in regions (there are!)
	a long-run re-run of the existing plots to get get more data, better  
data, and thus finer edges with less fuzz