Use customized picklers for AbinitFlows to avoid problems with @cached_class
Bug in outputting formation energy and chem potential solved
Add prettytable to req.
pmg script now just uses prettytable.
Add pickle_coders
Merge branch 'master' of https://github.com/gmatteo/pymatgen
Merge branch 'master' of https://github.com/mbkumar/pymatgen
Merge branch 'master' of github.com:materialsproject/pymatgen
Automatic Py3k merge for testing