add missing PMGSONable for Vasprun and Outcar
Pep8 cleanup.
Remove useless ConfigParser, which is non-Py3 compliant.
Downgrade numpy req.
Update VTK installation instructions for 6.1.0 for Mac.
Structure and Molecule now supports a very convenient to() and from_str and
from_file functionality. Instead of trying to load the appropriate parser, you
can output and read from the appropriate formats directly.
Merge branch 'master' of github.com:materialsproject/pymatgen
 Back to apscheduler==2.1.0
Merge branch 'master' of https://github.com/gmatteo/pymatgen
Merge remote-tracking branch 'mpmaster/master'