2x xp for solo players without a group

src/engine/objects/PlayerCharacter.java

@@ -2899,7 +2899,9 @@ public class PlayerCharacter extends AbstractCharacter {
 
     public synchronized void grantXP(int xp) {
 
-        xp *= Float.parseFloat(ConfigManager.MB_NORMAL_EXP_RATE.getValue());
+        if(GroupManager.getGroup(this) == null)
+            xp *= 2;
+
         // Stop players from getting experience past the cap
         if (this.exp + xp >= Experience.getBaseExperience(MBServerStatics.LEVELCAP))
             xp = Experience.getBaseExperience(MBServerStatics.LEVELCAP) - this.exp + 1;