Update DiscordBot integration

src/de/steamwar/bungeecore/BungeeCore.java

@@ -154,8 +154,10 @@ public class BungeeCore extends Plugin {
             Team.clearCache();
         }, 1, 1, TimeUnit.HOURS);
 
+        if (SteamwarDiscordBotConfig.loaded) {
             new SteamwarDiscordBot();
         }
+    }
 
     @Override
     public void onDisable(){
@@ -267,7 +269,9 @@ public class BungeeCore extends Plugin {
         );
 
         ArenaMode.init(config.getSection("games"));
+        if (config.getSection("discord") != null) {
             SteamwarDiscordBotConfig.loadConfig(config.getSection("discord"));
+        }
 
         final Configuration servers = config.getSection("servers");
         for(final String serverName : servers.getKeys()){

src/de/steamwar/bungeecore/bot/config/SteamwarDiscordBotConfig.java

@@ -29,6 +29,7 @@ import java.util.Map;
 
 public class SteamwarDiscordBotConfig {
 
+    public static boolean loaded = false;
     public static String TOKEN;
     public static String GUILD;
     public static String ANNOUNCEMENTS_CHANNEL;
@@ -110,5 +111,6 @@ public class SteamwarDiscordBotConfig {
         for (String type : ranksSections.getKeys()) {
             RANKS.put(UserGroup.getUsergroup(type), ranksSections.getString(type));
         }
+        loaded = true;
     }
 }