rmcgibbo/mdtraj — pull request #545 by kyleabeauchamp (2014-08-26 23:39:31+00:00)
Title: [WIP] Fixing roundtrip dataframe -> openmm topology bug, plus MD5

There's something goofy about how Pandas converts things into np.int64, which on certain platforms (Py3.3) is not hashable. This prevents us from taking a topology object and going roundtrip from Traj to Dataframe to OpenMM top.