v0.3.2

• bad_lammps_potentials list added which lists the LAMMPS potentials entries
  that should always issue errors if used. This is useful for anyone wishing
  to test both old and new versions of potentials by helping to process
  calculation errors.
• More updates for KIM potentials - now any KIM models associated with multiple
  potential entries will generate separate PotentialLAMMPS records for each.
  This simplifies the handling of these edge cases and helps avoid compositions
  associated with untrained cross-interactions.
• Citation records now treat "journal" as optional when loading. CrossRef
  bibtex seems to now be missing this value?