Use class "config name" on leaderboard signs.

Same as with arena names, we can just use the class "config name" on
leaderboards for a prettier experience.

changelog.md

@@ -27,7 +27,7 @@ These changes will (most likely) be included in the next version.
 - Commands that resolve arena and/or class names now consistently resolve and tab complete "slugs" instead of arbitrarily "squashed" names. This greatly improves support for multi-word names.
 - The class signs generated by the `/ma autogenerate` command now use class names from the config-file instead of arbitrarily "squashed" names.
 - The `/ma addarena` and `/ma autogenerate` commands now supports multi-word arena names.
-- Leaderboards now use arena names from the config-file instead of arbitrarily "prettified" names.
+- Leaderboards now use arena and class names from the config-file instead of arbitrarily "prettified" names.
 - Using `spectate-on-death: true` no longer forces players out to their join location/exit warp before moving them to the spectator area. This should prevent "jumpy" behavior in multi-world setups.
 - Players should now properly respawn at the spectator area rather than at world spawn on servers with plugins that override respawn locations.
 - Config-files with missing `pet-items` nodes no longer errors. A missing `pet-items` node in `global-settings` is treated as empty, i.e. no pet items will be registered.

src/main/java/com/garbagemule/MobArena/ArenaPlayerStatistics.java

@@ -17,7 +17,7 @@ public class ArenaPlayerStatistics
     public ArenaPlayerStatistics(ArenaPlayer player) {
         this.player = player;
         this.playerName = player.getPlayer().getName();
-        this.className = player.getArenaClass().getLowercaseName();
+        this.className = player.getArenaClass().getConfigName();
         reset();
     }