Merge new changes.
Cleanup feffio_set code.
More cleanup.
Minor improvements to docs.
Fix docstrings.
v2.6.6b
Update feffio.
Update example.
Add very detailed installation instructions for all platforms.
Add change log.
Minor cleanup.
Minor cleanup of matcher.
Cleanup of README and docs.
return kpoint labels for get_kpoints
Cleanup docs a little.
Greatly simplify anonymous fitting.
Add a to_dict method for GaussianOutput.
Add support for charged molecules and autodetermination of spin multiplicity.
small bug fix
Support for charged molecules in gaussian input files.