[PATCH] Add to an event, when BC video field is changed by the module

When the BC video field is changed after upload or attach a video, there is no chance to catch it, because it is not connected to any event. I create a patch, which connects these module actions with the change event:
parent.jQuery("." + field_rel).val(data).triggerHandler('change');
In this case, the event handling on the BC video field is more reliable.