Validation library

[alexsancho]

With current validation, it's no posible to validate data after library constructor, there should be another method to fill $this->data after contructor. I suggest to add and optional parameter to Validation::run

	public function run(array $data = null)
	{
		if(!is_null($data)) $this->data =& $data;
                ....
        }

[armen]

Fixed in r1734