improv(Fabric start scripts): If the improved Fabric server launcher is present, use it. Otherwise the old-fashoned way of downloading and installing a classic Fabric server is used.

feat(Quilt Modloader Support): Fully fledged Quilt support! Including start scripts, modloader server installation, automated clientside-only mod exclusions and webservice support! Please delete your `lang/lang_en_us.properties`-file to receive language updates.

improv(Modloader server installation): Move the installation of the modloader server AFTER the generation of the server packs ZIP-archive. This ensures the ZIP-archive contains NO files which would result in a refection from CurseForge or other services. It ensures the ZIP-archive is as lightweight as possible.

refactor(Enums): Change the way enums are used in the CommandlineParser and VersionMeta. Remove / use values where appropriate.