Merge pull request #6028 from GNosii/qol/supress-if-empty

Auto-supress event message if empty

src/com/palmergames/bukkit/towny/event/actions/TownyActionEvent.java

@@ -119,7 +119,10 @@ public String getMessage() {
 	 * @param message Message shown to players when their build attempts is cancelled.
 	 */
 	public void setMessage(String message) {
-		this.message = message;
+		if (message.equals(""))
+			this.supressMessage(true);
+		else
+			this.message = message;
 	}
 
 }