Add runXXX functions.  These do the computations with various preset parameter values.

I think having these will be useful for managing computations on the cluster, and let us recreate computations easily later, as we tune up and fix the code.

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

Signed-off-by: David Brainard <brainard@psych.upenn.edu>
Modified to handle presets, implement surround, implement second site noise so that surround can have an effect.

Signed-off-by: David Brainard <brainard@psych.upenn.edu>
Comments.  Now going to set a really big set of computations loose on the cluster.

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