Summary
- merged
- tuned messages: less verbosity;
- prefer Other_Isabelle.init instead of adhoc scripts;
- tuned message, following "isabelle components -a";
- clean components more accurately: purge other platforms or archives;
- more operations for SSH.System;
- clarified signature;
- tuned;
- manage other Isabelle distributions via SSH;
- more operations for SSH.System;
- recovered option -C from 092449efcb0e (still required for isabelle_cronjob.scala on Windows), but with slightly different meaning;
- clarified parameters (again);
- Some new material from the AFP