v5.4.3

Changed

• Remove INF log that showed a total count of CFs without scores assigned. This log caused a lot of
  confusion in support channels. You can still see a list of CFs without scores in the debug logs.
• Relaxed validation rules for trash_ids and quality_profiles under custom_formats. Both of
  these nodes may now be empty. This is mostly to make commenting out parts of configuration
  templates easier.
• The merge operation for custom_formats is now "Join" (previously "Add"). If, for the same
  profile, you "reassign" a different score to a CF, the score now gets updated without having to
  remove the CF from custom_formats sections in included YAML files.