fix: fixes to handle various openfmri datasets
fix: handle missing runs
fix: cope and varcope sorting and skipping junk conditions
fix: sometimes junk has onsets
fix: use contrasts list to determine number of copes
fix: add mean back for fsl 5.0.7 after highpass - test for shape in generating dof volumes
Merge pull request #1006 from satra/enh/openfmri

MRG: fixes to handle various openfmri datasets