option document_preprocessor;

show symbols in Isabelle/ML instead of perl;

more robust run of makeindex (amending 0f0a2148a099, Gerwin Klein 2004), using the old status-quo of e.g. doc-src/Intro/Makefile;

tuned --- more robust;

discontinued somewhat pointless "fixbookmarks": default output works sufficiently well;

more uniform bibtex error, without using perl (see 4710dd5093a3);

proper message for instances of Exn.User_Error, without extra Output.error_prefix (e.g. for Document_Build.Build_Error);

tuned;

clarified command-line options;

obsolete (see 5a3a2a52648d);

redundant: copy produced from session document_files;

clarified treatment of Isabelle .sty files;

option document_logo;

proper options;

option document_build refers to build engine in Isabelle/Scala; pdflatex is back as legacy build engine, e.g. for published proceedings;

redundant: tmp_dir is purged anyway;

misc tuning and clarification;

clarified modules;

tuned --- clarified corner cases;

more uniform use of Properties.Eq.unapply, with slightly changed semantics in boundary cases;

clarified signature -- avoid odd warning about scala/bug#6675;

tuned;

tuned;

clarified signature;