Do the heavy work only if the mod is enabled

Signed-off-by: Suki <suki@missallsunday.com>
Don't forget to load the language file...

Signed-off-by: Suki <suki@missallsunday.com>
Lastly, call the right file during install

Signed-off-by: Suki <suki@missallsunday.com>