Updated YouTube, Mail.Ru and MSNBC
YouTube has deprecated the controls setting of its player.
This update reverts the previous one and should fix the aspect ratio of vertical video embeds. Both posts and videos should be embedded correctly provided that the browser doesn't block "Referer" headers.
Note that Facebook may prevent you from seeing embedded posts if your browser blocks third-party cookies or referrers.
Added support for new Gfycat URLs. The YouTube embed now uses the basic controls for faster loading.
Fixes some /t/ URLs being rendered incorrectly.