Song and Dance timers now correctly update in the instance of Dissonance/Ugly Dance cell switches - Fixes bugreport:6606
Adding display enabled language in @langtype
Speed up language check and ignore case

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17252 54d463be-8e91-2dee-dedb-b68131a5f0ec