implemented new, slower, more accurate method of determining initial
significance
removed worker chatter
changed MP_MAX_QUEUE to 16 for tiny speed increase, if experiencing
memory issues change it back to 8
code cleanups (made functions for ctalk.mutualize and
ctalk.create_new_symm_dset)
workers less chatty, doc changes in ctalk
Attempting to replace CROC with scikits-learn
continue to remove print lines from AUC*
Replaced CROC-based AUC code with code adapted from scikits-learn for
speed

Added licensing from numpy and scikits-learn