BF: add list around .values() for python 3
BF: add list around .values() for python 3

Python3 dict values method returns a generator, and can't be indexed;
make into an explicit list.

bthirion/nipy,bthirion/nipy,nipy/nireg,alexis-roche/nipy,alexis-roche/nipy,nipy/nipy-labs,nipy/nipy-labs,nipy/nireg,bthirion/nipy,alexis-roche/nipy,alexis-roche/register,arokem/nipy,alexis-roche/register,alexis-roche/niseg,alexis-roche/register,alexis-roche/niseg,arokem/nipy,alexis-roche/nipy,alexis-roche/nireg,bthirion/nipy,alexis-roche/nireg,arokem/nipy,arokem/nipy