Embedded video (social plugin)

Facebook's social plugin "Embedded Video Player" is currently the best way to embed a Facebook video. The module "video embed facebook" uses the old approach. So we've come up with a patch that allows to configure an embedded video field to use the social plugin instead. Current code and functionality has not been touched (just the validate function, see the patch for details) so you can continue to use the old approach or use the new one as documented on the page linked above.

Please test attached the patch and apply to the module if you think it would be worthwhile.