Fix toy_tis.ipynb after bad local run.
Fix toy_tis.ipynb after bad local run.

dwhswenson/openpathsampling,openpathsampling/openpathsampling,openpathsampling/openpathsampling,choderalab/openpathsampling,openpathsampling/openpathsampling,dwhswenson/openpathsampling,dwhswenson/openpathsampling,choderalab/openpathsampling,openpathsampling/openpathsampling,jhprinz/openpathsampling,dwhswenson/openpathsampling,jhprinz/openpathsampling,jhprinz/openpathsampling,choderalab/openpathsampling