RF: seaborn now required

because it's finally pip-installable!
DOCS: spelling fix
NF: gridspec support

NF: within and errkind keywords for within errorbars, CIs etc
RF: (un)stacking now comes from stats so that label order is preserved
ENH: within participant error bars

NF: stack and unstack that preserve order
RF: unstack -> unstacked due to the new stats.unstack()
RF: confidence: repmes -> within
ENH: can call a custom method for fMRI analysis
BF: MouseRespGroup (multiple fixes)

BF: svgwrite is not mandatory now
BF: repo_action fix for tuple action
RF: repo_action after run
BF: multiple fixes to Analyzer
RF: branch out report from ui to a separate module

BF: limits on SpinCtrl