Rewrote second site code to make it a lot faster.  And rewrote cone response code to only pass forward data for the specified number of cones being used.  But ...

there is some weird bug where putting in test level 0 leads to above chance classification (way above chance) when the second site calculations are implemented.  I don't see where the information leak is, since I think we cleanly separate training and validation sets.  But something isn't correct.  A morning of chasing it did not make it go away.  Keep thinking.

Signed-off-by: David Brainard <brainard@psych.upenn.edu>