Don't expand large gists/embeds - leave as a link
When I want to share code ~5 lines, I put it in a code block When I want to share something bigger, I put it in a gist.
But gitter pastes the gist into the window.
I would like gitter to not paste the code into the window if it is bigger than some small threshold (possibly 5 lines)
It would also be nice to be able to collapse this code that was auto included
Relevant code: look for "iframely"