Add some commands and listeners

- Add gamemode commands
- Added MOTD listener
- Fixed bugs

src/main/java/me/totalfreedom/plex/cache/DataUtils.java

@@ -4,10 +4,10 @@ import java.util.UUID;
 import me.totalfreedom.plex.Plex;
 import me.totalfreedom.plex.player.PlexPlayer;
 import me.totalfreedom.plex.storage.StorageType;
+import org.bukkit.Bukkit;
 
 public class DataUtils
 {
-
     public static boolean hasPlayedBefore(UUID uuid)
     {
         if (Plex.get().getStorageType() == StorageType.MONGO)
@@ -37,6 +37,11 @@ public class DataUtils
         }
     }
 
+    public static PlexPlayer getPlayer(String name)
+    {
+        return getPlayer(Bukkit.getPlayer(name).getUniqueId());
+    }
+
     public static void update(PlexPlayer plexPlayer)
     {
         if (Plex.get().getStorageType() == StorageType.MONGO)