OPT ClusterDist:  multiprocessing
DOC testnd:  better error message for invalid kwargs
ENH ClusterDist:  slices of TFCE results
ENH SourceSpace:  allow .index_for_label() with string
WIP SETUP:  use setuptools upload_docs
ENH t_contrast:  allow cells with "*"
WIP MneExperiment:  dynamic sns-kind
ENH MneExperiment:  evoked-kind
ENH Dataset.aggregate():  ADD equal_count argument
ENH MneExperiment:  ADD option to equalize trial count in evoked files
AMD
AMD