ENH WxTerm:  Add ShellFrame.set_debug_mode() method
UPDATE mne_experiment to take into account change in location of mne.coreg
DOC _unpack_epochs_arg():  better error message
DOC:  plotting section
ENH plot.TopoButterfly:  keyboard commands (t, left arrow, right arrow)
FIX gui.SelectEpochs:  x-axis in ms
FIX gui.SelectEpochs:  plot as traces
API:  deprecate .subdata() and .subset()
API gui.SelectEpochs:  add .set_plot_style() method;  parameter ROI -> mark
RF NDVar:  simplify .sub(), .get_axis() and .get_dim()
FIX Sensor dim:  __getitem__ for [int] indexes  (& TEST)
API:  load.eyelink cleanup (capitalization)

- deprecate load.eyelink.add_edf()
- .get_T() -> .get_t()
- .add_T_to() -> .add_t_to()
- .assert_Id_match() -> .assert_trigger_match()
- `Id` parameter -> `trigger`
FIX WxTerm:  Save As
FIX plot.UTSStat():  dev="all"
DOC:  better coverage of stats
DOC:  merge plotting into Reference section
DOC Reference:  add stats functions
DOC