ENH ndvar.__init__():  convert x with np.asarray()
ENH mne_experiment:  plot and res templates
SETUP:  add wxpython py2app fields
STY load.fiff:  remove old functions, relative imports
ENH mne_experiment:  make ttests
ENH mne_experiment.parse_dirs():  always set a valid subject value
ENH mne_experiment:  load_ methods

- add baseline correction
- ability to load data for groups
- only load a subset of categories with cat argument
- RM .load_sensor_data()
STY plot.brain:  cleanup
ENH plot.brain:  add save_movie() method
ENH wxterm:  access history by session in menu
ENH mne_experiment:  add .next() method to move through field values
ENH interaction:  add .isin() method
ENH testnd.ttest():  allow conditions specified on interactions
STY testnd
FIX ndvar.__getitem__():  integer index into one-dimensional ndvar
ENH testnd:  duration based cluster correction
ENH mne_experiment:  add make option to .get()
ENH mne_experiment:  more rejection options

- use `kind` entry as primary option
- allow "make" (made by the user but not with rejection GUI)
STY mne_experiment.list_files()
ENH mne_experiment:  add .make_raw() with some defaults