Add __isset and __unset

src/Templates/Savant/ObjectProxy.php

@@ -104,6 +104,30 @@ function __set($var, $value)
         $this->object->$var = $value;
     }
 
+    /**
+     * Magic method for checking if a property is set.
+     * 
+     * @param string $var The var
+     * 
+     * @return bool
+     */
+    function __isset($var)
+    {
+        return isset($this->object->$var);
+    }
+
+    /**
+     * Unset a property.
+     * 
+     * @param string $var The var
+     * 
+     * @return void
+     */
+    function __unset($var)
+    {
+        unset($this->object->$var);
+    }
+
     /**
      * Magic method which will call methods on the object.
      *