Small correction of label for energy in phase diagrams.
Merge branch 'master' of git://github.com/materialsproject/pymatgen
Merge branch 'master' of git://github.com/materialsproject/pymatgen
esp_nwchem
 Make workflow pickleable
ADd example ipython notebooks.
Fix unittests for ArrayWithUnit
 Cosmetic changes
Merge remote-tracking branch 'mpmaster/master'
 Save UnitError as class attribute of Unit, FloatWithUnit, ArrayWithUnit
Turn off sort structure for MD runs.
Added function to perform anonymous fitting. The 'best' fit is chosen as the one with the smallest average electronegativity difference between the matched sites (If the fit is within tolerance). A test case has been added.

Changed primitive cell finder to return the niggli cell of the found primitive cell. This should help to prevent returning hyper-skewed cells
Merge branch 'master' of github.com:materialsproject/pymatgen
changed sum to average (not actually important)
 Refactoring task.status
add test for nwchemio and fixed bugs
Some minor cleanup.
More doc updates.
Added O2, H2, and H2O to compound energies within Pourbaix compatibility. (Pourbaixcompatibility is being moved to a new aqueous compatibility, and the oxide checks are being integrated into compatibility.)
Merge branch 'master' of https://github.com/materialsproject/pymatgen