Major improvements

• Now compatible with Linux(!) and Mac-OS (?!)
• Can now handle open Cider projects
• When the WS is empty the current dir is not questioned
• .git is ignored now when a path or "all" is specified
• Documentation improved
• Bug fixes:
  • For acre projects as well as Cider projects "APLSource/" should have been added to the path unless
    -all was specified because both project managers use that as default for source files
  • The project path should have been deleted from file names for open projects with the "all"
    flag specified, but wasn't