OPT testnd.ttest_rel:  use t_1samp
ADD:  MneExperiment.make_report_rois()
RF wx_ui:  use wxgui app
API experiment:  make submodules private
FIX data-obj:  unicode Dataset keys
API plot.UTSStat:  only use axtitle argument with Xax
API MneExperiment:  make .run_subp() private
STY MneExperiment
FIX plot.UTSStat:  legend
CLN subp
FIX subp:  don’t change environment vars
FIX wxgui-draw_text
ENH wxgui-draw_text:  colors
TEST testnd reproducibility