Modified docs.
Remove built docs.
Keep FFT grid parameters for NonSCF runs

And some cleanup of the Vaspinputset
Beta version of magnetic ordering.
Add energy model module.
Add an ISing Energy model.
MAgOrdering now takes in an EnergyModel.
Add a unittest with an IsingModel for mag ordering.
Super fast mag ordering matching uysing a SpinComparator instead of anonymous
fitting.
Minor unittest fix.
Add enumlib kwargs and tests to MagOrdering.
 Add automatic restart to the scheduler
Merge remote-tracking branch 'mpmaster/master'
Improve docs.
Add functionality to specify the magnetic order parameter. Defaults to 0.5 for AFM ordering.
Add new parameter max cell to specific max allowed supercell. If min enumeratable supercell is smaller than this (determined in the code), raises ValueError
test for orderparameter ( tests 0.75 ferrimagnetic ordering)
reinstate EnumerationTransformation kwargs in init
fix test cases for EnumerateStructureTransformation kwargs
minor changes to comments and variable names
Minor
Merge branch 'mag' of github.com:materialsproject/pymatgen into mag