* Update german language
* Added w3c option
* Added filter youtube_iframe on iframe src.

git-svn-id: https://plugins.svn.wordpress.org/youtube-widget-responsive/trunk@966935 b8457f37-d9ea-0310-8a92-e5e31aec5664
added tags

git-svn-id: https://plugins.svn.wordpress.org/youtube-widget-responsive/trunk@966936 b8457f37-d9ea-0310-8a92-e5e31aec5664