Changes from Mercurial (hg https://foss.heptapod.net/isa-afp/afp-devel/ default)
Summary
- Eliminated the temporary material that was already migrated to the Isabelle libraries
- merge from afp-2021-1
- regenerate site;
- tuned;
- merged
- New entry CRYSTALS-Kyber
- regenerate site;
- added missing history in metadata;
- retrieve missing change history in metadata migration tool;
- backout b2ae7c2c3ea51af8f43b76cdcb5d499c5085e726
- new email address for Maksym
- metadata and sitegen for Khovansikii_Theorem
- new entry: Khovanski-Theorem
- fixed metadata for Hales_Jewett
- sitegen for Number_Theoretic_Transform
- new entry Number_Theoretic_Transform
- new entry Hales Jewett
- adapt to only check ROOT for directories in thys (aftermath of Isabelle/a9bbf075f4319e920a22a1c0a5b763b6575f2089);