message: fix compile errors accumulated so far
diff: @@ -138,11 +138,11 @@ namespace detail {
  bool all_keys_used() const { return boost::algorithm::all_of_equal(_used_keys, true); }
  flat_set<public_key_type> used_keys() const {
  - auto range = utilities::FilterDataByMarker(signing_keys, _used_keys, true);
  + auto range = utilities::filter_data_by_marker(signing_keys, _used_keys, true);
  return {range.begin(), range.end()};
  }
  flat_set<public_key_type> unused_keys() const {
  - auto range = utilities::FilterDataByMarker(signing_keys, _used_keys, false);
  + auto range = utilities::filter_data_by_marker(signing_keys, _used_keys, false);
  return {range.begin(), range.end()};
  }
  }; /// authority_checker
  