Working: Youtube and Vimeo in Galleries

[christopher-w]

Hey Folks.

Not sure when core will support Youtube and Vimeo in Galleries?

So in the meantime I've added rudimentary, but working support, for both. A few cosmetics to tidy up, but it works great and requires very little effort to achieve. Works in Club galleries too. 

Let me know what you think. Is this worth developing further? Is core going to support YouTube galleries anytime soon? etc.