PEP8
Convert some preproc functions into interfaces
Plot rotations as degrees not radians
Change coregistration connections and update report
Skullstrip using the Freesurfer segmentation
Detect artifacts with robust stats and add spike detection
Better EPI space mosaic
Consider spikes when finding artifacts
Rearrange where some information gets plotted
Change default intensity threshold to reflect use of MAD
Update docs and release notes to reflect preproc workflow changes
Thinner lines in motion plots
Use the right keyword argument in DataFrame.plot()
Additional mixed effects note
Remove vestigal preproc imports
Merge pull request #32 from mwaskom/better_preproc

Improvements and tweaks to the preprocessing workflow