API mne_experiment: split template handling base class out of mne_experiment
ENH MneExperiment:  new "epoch-rej" field set in .set_epochs()
ENH MneExperiment:  add pad arg to .set_epoch()
STY MneExperiment:  method order
ENH MneExperiment:  Allow initializing without subjects
FIX TEST:  add load/tests/__init__.py
DOC:  make mne example more interesting
ENH UTS dimension:  error message for invalid time windows
FIX PyEditor:  in exec auto-selection, recognize indented block
API:  ndvar.properties --> ndvar.info
ENH plot:  more .set_vlim() and .set_cmap() methods

to be fixed in next commit: permanent change of camp and vlim in plot.topo.butterlfy
ENH plot:  plotting without Colorspace

- replace Colorspace class with info dict entries
- add "meas" info entry
- set_cmap() and set_vlim() methods for plots
ENH dimensions: add dim.unit attr, use for naming when Xax=".dim"
STY testnd:

- cluster_dist -> ClusterDist
- remove pmax parameter from ClusterDist
API:  create eelbrain.data package

- RM duplicate:  remove cell_labels(), only retain cellname()
FIX:  backwards compatibility for pickled data-objects
TEST plot:  close() plots
RF ndvar.get_data():  use np.transpose()
ENH ndvar:  better time indexing accuracy through rounding
ENH as_factor():  convert any object that has .as_factor() method