Even more fluent eloquent model via magic setters

Now it is possible to use Eloquent's magic setters in chains. For example:

    $model->set_foo('foo')->take(10)->set_bar(some_function());
    // ...even though setters 'foo' and 'bar' are not defined on the model

laravel/database/eloquent/model.php

@@ -770,6 +770,7 @@ abstract class Model {
 		elseif (starts_with($method, 'set_'))
 		{
 			$this->set_attribute(substr($method, 4), $parameters[0]);
+			return $this;
 		}
 
 		// Finally we will assume that the method is actually the beginning of a