Update to 0.341
    
    - New upstream release 0.341
      - load_first_existing_class() is now working
      - Class::Load::load_class(), try_load_class() and load_optional_class() are
        working
      - Detect uses of Module::Runtime
      - Include extractuse as provided by Jonathan Yu in example/
      - Linkify POD modules, mention Module::Extract::Use to resolve CPAN RT#45571
      - Fix 20_parse_self.t; version.pm is no longer used
    - Classify buildreqs by usage