Pymatgen

* Bug fix for PhononBandStructureSymmLine. (gpetretto)
* Improved robustness in ABINIT input generation. (gpetretto)
* Other minor bug fixes.

1. Cp2K support (nwinner)
2. Better BSPlotter (fraricci)
3. Better deprecation warnings.
4. Bug fix for Py3.9 support.
5. Bug fix for neutron diffraction get_plot.

* Cube parsing and Cube integration to Bader (nwinner, 1967)
* Improvements to PhaseDiagram (CompRhys, 1899)
* Improvements to VASP sets to calculate NGX/Y/Z, NGX/Y/ZF (jmmshn, 1959)
* Changes to MPRelaxSet, default to low spin for Co (shyuep, 1976)
* Changes to MPScanSet (rkingsbury, 1952)
* Rename of `Specie` to `Species`, `Specie` will be retained for backwards compatibility (shyuep, 1963)
* Bug fix for VASP sets (utf, 1979)
* Bug fix for PDPlotter (mattmcdermott, 1973)
* Bug fix for EnergyAdjustment (rkingsbury, 1960)

* New Plotly backend for PhaseDiagram plotting (mattmcdermott, 1936)
* New reporting and logging of Materials Project database version in MPRester (mkhorton, 1945)
* Improvements and bug fixes with mcsqs integration (rwoodsrobinson, 1942)
* Improvements to PackmolRunner (rkingsbury, 1947)
* Improvements to ComputerEntry (rkingsbury, 1948)
* Improvements for MPScanSet (rkingsbury, 1940)
* Bug fix for Surface and Composition (gpetretto, 1937)
* Bug fix for EwaldSummation serialization (lbluque, 1932)
* Bug fix for SeeK k-path (Ian496, 1930)
* Fix for deprecation warning in MPRester (rkingsbury, 1951)

* New GibbsComputedStructureEntry (mattmcdermott, 1921)
* Changes to MPScanRelaxSet and new MPScanStaticSet (rkingsbury, 1917)
* Changes to LobsterSet (JaGeo, 1928)
* Bug fix and change for MPRelaxSet (mkhorton, 9eb3ac2)
* Bug fix for JMolNN (utf, 1920)
* Bug fix for Element valences (rkurchin, 1926)
* Bug fix for BabelMolAdaptor (smheidrich, 1924)
* Bug fix for Gaussion IO (eimrek, 1918)

* Change neighbor-finding algorithm extension to C instead of C++ for better cross-platform robustness (chc273)
* Add I/O for JARVIS Atoms (knc6)