Summary
- tuned output;
- merged
- clarified chapters: de-emphasize minor examples;
- tuned signature;
- clarified signature;
- produce root index based on sessions_structure.chapter_defs; disregard lib/html/library_index_content.template (NB: still needed for Isabelle website);
- provide chapter descriptions, based on lib/html/library_index_content.template;
- more robust: proper system_name;
- support 'chapter_definition' with description for presentation purposes;
- tuned whitespace;
- tuned signature;
- removed unused "def_theory" markup (stemming from be49c660ebbf), superseded e.g. by Document_Info.theory_by_file();
- more aggressive clean_directory(session_dir), while rm_tree is guarded by check_directory, i.e. it is presumably "owned" by Browser_Info.build_session();
- clarified signature;
- tuned signature;
- clarified signature;
- tuned whitespace;
- more robust: ensure that chapter/session/theory do not contain special notation (like "/" or "..");
- merged
- NEWS about Sum_of_Powers
- Removal of a duplicate theory, since that material and more is in the AFP: https://www.isa-afp.org/entries/Bernoulli.html