retesting 6.3

git-svn-id: https://plugins.svn.wordpress.org/youtube-embed-plus/trunk@823909 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixes problems some users had with previous version

git-svn-id: https://plugins.svn.wordpress.org/youtube-embed-plus/trunk@823938 b8457f37-d9ea-0310-8a92-e5e31aec5664