Added Config.java

src/com/redstoner/exceptions/NonSaveableConfigException.java

@@ -0,0 +1,9 @@
+package com.redstoner.exceptions;
+
+public class NonSaveableConfigException extends Exception {
+    private static final long serialVersionUID = -7271481973389455510L;
+    
+    public NonSaveableConfigException() {
+        super("This config does not support saving!");
+    }
+}