NF - add spaces to nipy.core.api imports
NF - add spaces to nipy.core.api imports

MNI etc spaces may be useful at the API level

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