wrap lua object into java object

- to ease handling wrap lua object to java object

java/org/artisanlogiciel/lua/LuaNumber.java

@@ -14,4 +14,9 @@ extends LuaObject {
     public String toString() {
         return "" + number ;
     }
+
+    @Override
+    public Object wrapToJava() {
+        return new Integer(number);
+    }
 }