FIX: find_stim_steps api
Merge pull request #718 from mluessi/fix_api_find_stim_steps

FIX: find_stim_steps api
ENH: better CTF ch_name support
FIX: remove old code
Merge pull request #723 from dengemann/ctf_fix_layout

ENH: better CTF ch_name support
ENH: Reducing test memory consumption
ENH: Reduce memory consumption
ENH: More leaning
ENH: Making tests cleaner and more efficient
ENH: improve sklaern version handling for ICA
Merge pull request #724 from dengemann/restrict_ica_version

ENH: improve sklaern version handling for ICA
Update ica.py

@agramfort fixes unused imports.
misc
requires sklearn in test viz of ica