bump version to 3.0.0
bump version to 3.0.0

ibab/root_numpy,ibab/root_numpy,rootpy/root_numpy,ibab/root_numpy,ndawe/root_numpy,rootpy/root_numpy,ndawe/root_numpy,scikit-hep/root_numpy,scikit-hep/root_numpy,rootpy/root_numpy,ndawe/root_numpy,ndawe/root_numpy,ibab/root_numpy,rootpy/root_numpy,scikit-hep/root_numpy,scikit-hep/root_numpy