changed output format for correlation coefficient (from 3 decimal places to 2)
changed correlation coefficient output format from 3 decimal places to 2
changed default values for min-ct-cell, min-mx-cell, and min-samples;
also updated to invoke the newest version of pairwise 2.0
changed default values of min-ct-cell, min-mx-cell, and min-samples
modified to allow for new optional (final) command-line argument to
specify the name of the config file