Summary
- more robust: avoid implicit setup (with default resolver);
- more portable;
- proper path;
- tuned;
- merged
- avoid strict evaluation of "isabelle_stack path --programs";
- enforce settings that are likely to be outdated, e.g. in $ISABELLE_HOME_USER/etc/settings;
- support for GHC via command-line tools;
- tuned;
- tuned message;
- auto update;
- isabelle_stack as portable shell function;
- tuned;
- added Array files
- new theory Abstract_Topology with lots of stuff from HOL Light's metric.sml
- more intuitive and simpler (but slower) proofs