Summary
- merged
- fix (non-existent) document generation
- updated to scala-2.12.7;
- news
- de-emphasize HOL-SPARK: somewhat outdated;
- proper naming conventions for contexts;
- permissive declaration attribute "relator_mono", e.g. relevant for Binomial-Heaps.BinomialHeap with -o export_theory;
- tuned spelling;
- tuned whitespace and sections;
- tuned -- eliminated clone;
- suppress aux. locales from command 'experiment' -- avoid crash of theory Dict_Construction.Test_Dict_Construction (AFP);
- obsolete (see 6f8ae6ddc26b);
- updated to new list_update precedence
- avoid confusing precedences