implemented import order changes. removed import nibabel (no longer used). implemented pyflakes and pep8 flags.
implemented import order changes. removed import nibabel (no longer used). implemented pyflakes and pep8 flags.

aestrivex/mne-python,leggitta/mne-python,jniediek/mne-python,olafhauk/mne-python,mne-tools/mne-python,alexandrebarachant/mne-python,rkmaddox/mne-python,nicproulx/mne-python,kingjr/mne-python,teonlamont/mne-python,Teekuningas/mne-python,nicproulx/mne-python,Odingod/mne-python,cjayb/mne-python,wmvanvliet/mne-python,trachelr/mne-python,ARudiuk/mne-python,Eric89GXL/mne-python,drammock/mne-python,ARudiuk/mne-python,wmvanvliet/mne-python,yousrabk/mne-python,jmontoyam/mne-python,pravsripad/mne-python,mne-tools/mne-python,mne-tools/mne-python,jniediek/mne-python,adykstra/mne-python,andyh616/mne-python,effigies/mne-python,olafhauk/mne-python,dimkal/mne-python,andyh616/mne-python,pravsripad/mne-python,Teekuningas/mne-python,drammock/mne-python,matthew-tucker/mne-python,dgwakeman/mne-python,kingjr/mne-python,dgwakeman/mne-python,cmoutard/mne-python,pravsripad/mne-python,jaeilepp/mne-python,jaeilepp/mne-python,kambysese/mne-python,leggitta/mne-python,bloyl/mne-python,trachelr/mne-python,aestrivex/mne-python,wronk/mne-python,lorenzo-desantis/mne-python,yousrabk/mne-python,cjayb/mne-python,olafhauk/mne-python,effigies/mne-python,rkmaddox/mne-python,dimkal/mne-python,adykstra/mne-python,larsoner/mne-python,wronk/mne-python,antiface/mne-python,wmvanvliet/mne-python,cmoutard/mne-python,lorenzo-desantis/mne-python,larsoner/mne-python,agramfort/mne-python,bloyl/mne-python,matthew-tucker/mne-python,Eric89GXL/mne-python,kambysese/mne-python,agramfort/mne-python,kingjr/mne-python,Teekuningas/mne-python,drammock/mne-python,alexandrebarachant/mne-python,antiface/mne-python,larsoner/mne-python,Odingod/mne-python,teonlamont/mne-python,jmontoyam/mne-python