* Fall back to region-based language if a title does not have a name for the current system language.
* Treat .cetk files as tickets.
* Fix self-overwrite check when FBI has a different unique ID.
* Fix TWL cartridges being sorted at the end of the title list.
* servefiles: Add .cetk to supported extensions.
* servefiles: Add drag-and-drop batch file. (@Remnence)
* servefiles: Exit with code 1 if a socket error occurs.
* servefiles: Miscellaneous clean-ups and improvements. (@emeric254)
* servefiles: Use /usr/bin/env for shebang.