Tweaking has_many "save" method.

Signed-off-by: Taylor Otwell <taylorotwell@gmail.com>

laravel/database/eloquent/relationships/has_many.php

@@ -20,6 +20,9 @@ public function results()
 	 */
 	public function save($models)
 	{
+		// If the given "models" are not an array, we'll force them into an array so
+		// we can conveniently loop through them and insert all of them into the
+		// related database table assigned to the associated model instance.
 		if ( ! is_array($models)) $models = array($models);
 
 		$current = $this->table->lists($this->model->key());