Clean up oxide_type
Fixed minor bug which over-stabilized oxy-hydroxides.
add find_spacegroup option to CIFWriter
add test for structure sorting
fix MAJOR bug in vaspio where POSCAR is unsorted and POTCAR is sorted
add test for correct POTCAR ordering
v2.8.6 release.
Changelog.
add frequency parsing
make imaginary frequency an error
imaginary frequency shouldn't be an error
put COSMO energies to dict to resolve confusion of the different energies
fix COSMO unittest
added get_supercell_matrix method to structure_matcher
Merge branch 'master' of https://github.com/materialsproject/pymatgen
Added spb.py to electronic_structure
Allows boltztrap data to be compared to the band model