Documentation updated for bond_valence of unordered structures
Added RemoveExistingFilter in order to remove from the transmuter when these structures exist in a given list.
Added option in the substitutor to ask for removal of existing structures
Fixed small error in the remove_existing part of the pred_from_structures
detect error Killed
Merge remote-tracking branch 'origin/master'
Voronoi face centers are also included in the interstitial sites. Latests Zeo++ required
Merge branch 'master' of https://github.com/mbkumar/pymatgen

Conflicts:
	pymatgen/analysis/defects/point_defects.py
extend the range of error code 134
Merge remote-tracking branch 'origin/master'
Added method to check for coordinate subsets and supersets
add test for operate_multi
Add method get_materials_id_from_task_id.
Merge branch 'master' of github.com:materialsproject/pymatgen
Merge branch 'master' of https://github.com/materialsproject/pymatgen
added lattice_points_in_supercell to coord utils
Merge branch 'master' of github.com:materialsproject/pymatgen
Use ScratchDir to reduce code in enumlib caller considerably.
Increase monty required version.
Merge branch 'master' of github.com:materialsproject/pymatgen
Simplified Bader caller with ScratchDir.