FIX prewhitening bug
update whats new
Merge pull request #1339 from dengemann/ica_fix_whitening_bug

FIX prewhitening bug
FIX: Refactor cov, projs, evoked, etc.
ENH: Move channels.py
FIX: Imports
FIX: Fix tests
FIX: Add to docs
ENH: add plot scores function
cosmits
updates
deprecate
more ICA rf changes
checkpoint ICA
refactor viz
checkpoint
checkpoint: flexible types and scores and multiple EOG chans
FIX: prewhitening bug
make old tests work + test deprecation
reorganize code to be mroe readable given all the deprecation