Added language support

git-svn-id: https://plugins.svn.wordpress.org/workbox-video-from-vimeo-youtube-plugin/trunk@922966 b8457f37-d9ea-0310-8a92-e5e31aec5664
mo files (russian and US)

git-svn-id: https://plugins.svn.wordpress.org/workbox-video-from-vimeo-youtube-plugin/trunk@922967 b8457f37-d9ea-0310-8a92-e5e31aec5664