Made changes to data structures for discrete and continuous independence
tests that
1) speed them up
2) prevent them from crashing due to "out of memory" errors
PCTest just does "local" tests
Added limit on the # of cells in the contingency tables as was described
by Spirtes & Glymour
little logging code added (currently inactive) for a small p-value
experiment.
testing discrete data (eventually need to extend jSMILE interface to
allow for detecting of datatype)