Fix for AttributeError in Trajectory
Fix for AttributeError in Trajectory

This still misses on the empty trajectory, but not sure how to fix that.

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