jsfiddle provides a way to create snippets from Github via a URL. This
way we can still provide easy demos, but get all the nice things from
having them in Git
Closes#32
Update gstreamer-receive to create pipelines for each input.
Currently we don't allow the user to pass in what codecs they support and we don't
take into account the offer. The API will need to be updated to catch
both these signaling errors. The user will pass a slice of support
codecs.