Pymatgen

* 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)

* Add validation and extrapolation for stitching XAS (yimingcheng)
* Better error handling and possibly verbose warning to get_structure_by_material_id

* Bug fix for boltztrap2 spin support. (fraricci)

* EwaldSummation is now MSONable (lbluque).
* Fix for QChem freq parsing (samblau)
* Much improved linting and workflows.