BF: Changed the mixed-effects doctest for Travis
BF: Changed the mixed-effects doctest for Travis

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