Adding -l option to run_results, ie list number of available results
Adding -l option to run_results, ie list number of available results

The number of results in spooldir, new and olf zip archives are given. The
actual files are not listed, though.

At the same time some code refactoring:
* main DB is updates as the my* is, i.e. with sed running only at the end
  of processing, and not for every downloaded result. This should improve
  robustness and speed of processing;
* counting number of lines/words in fort.10 no longer goes through an
  additional call to awk;
* the printout on terminal with some reference values taken from fort.10
  is triggered only if the output level is >1. Below such a threshold,
  the fields in fort.10 are not even retrieved;
* a trivial check of number of lines of DB is coded in a specific function;

SixTrack/SixDesk,SixTrack/SixDesk,SixTrack/SixDesk,SixTrack/SixDesk