0.18.2 - Bugfix release

Bugfixes

• A bug in the multistate samplers wherelogsumexp was imported from scipy.misc (now in scipy.special) was fixed (#423).
• Improve the robustness of opening the netcdf file on resuming of the multi-state samplers by setting the environment variable HDF5_USE_FILE_LOCKING to 'FALSE' after 4 failed attempts (#426).
• Fixed a bug causing a crash during exception handling (#426).

Other

• Update build infrastructure to match MolSSI cookiecutter (#424, #426).