Use Numba API location for jit import. (#1164)
Use Numba API location for jit import. (#1164)

As title. Imports Numba's `jit` decorator from the Numba API
location opposed to Numba's internals.
librosa/librosa,bmcfee/librosa,librosa/librosa,bmcfee/librosa,bmcfee/librosa