wenzelm [Sun, 21 Oct 2018 18:32:33 +0200] rev 69168
eliminated "isabelle makedist" -- prefer Scala over bash/perl scripting;
eliminated "isabelle news";
roper title in NEWS.html;
more robust build of documentation, using proper Other_Isabelle settings: avoid conflict with enclosing ISABELLE_OCAML / ISABELLE_GHC;
misc tuning and clarification;