#765 Replace Utils usages with TeleportService + misc householding

- Remove some legacy settings
- Move Utils "addNormal" method to AuthGroupHandler

(Reapplied changes from orphaned fe29089)

src/main/java/fr/xephi/authme/process/logout/AsynchronousLogout.java

@@ -52,6 +52,7 @@ public class AsynchronousLogout implements AsynchronousProcess {
 
         limboCache.updateLimboPlayer(player);
         playerCache.removePlayer(name);
+        // TODO LJ: No more teleport here?
         database.setUnlogged(name);
         syncProcessManager.processSyncPlayerLogout(player);
     }