deleting filters.py -- only the SpectralHRF and DelayHRF seem to need this class
deleting filters.py -- only the SpectralHRF and DelayHRF seem to need this class

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