FIX: coreg imports
DOC: add comments to ANOVA code
COSMMITS
ENH: handle unordered events
ENH: use warning instead
ENH: improve tests
COSMITS
Merge pull request #796 from dengemann/monotonic_events

ENH: handle unordered events + prevent non-chronological event schemes in Epochs
FIX: diff on empty / single events
Working on same branch from two difference computers.

Merge branch 'master' of git://github.com/mne-tools/mne-python into eeg-rereference-issue784
Merge branch 'eeg-rereference-issue784' of github.com:leggitta/mne-python into eeg-rereference-issue784
changed instances of .fiff.Raw to Raw in beginning comments. added test for to ensure that reference channels are entered as a list, even if there is only one channel