2.6.1 version. Updated change log.
Updated README.
Updated version.
Minor formatting changes.
Add check for elec steps in vasprun parsing converged.
update

Merge branch 'master' of git://github.com/materialsproject/pymatgen
add MP GGA VaspInputSet
Significant cleanup.
Yet more cleanup.
Still junking a lot more code.
More refactoring and code simplificaiton.
Remove useless GGA Config for MIT input set.
allow ~ to be used to specify vasp psp directory locations
Merge branch 'master' of github.com:materialsproject/pymatgen
Add editor method to strain a cell.
Beef up fit_anonymous of structure matcher to work with partial occupancies. So
now, you can map a partial occu to another partial occu, not just species.
Use func_tools total ordering. Beef up caching for Specie.
Fix unit tests.
Switch Site and Periodic Site to use Composition to represent species and
occupancy. This provides a lot more features, as well as enforcing the species
and occupancy to be immutable.
Fix unittests.