FFe new upstream WIP snapshot

We want to ship in cosmic +1 gsconnect extension by default in ubuntu.

However, upstream did a big rewrite this cycle. We shipped a WIP snapshot in July with their content.
Upstream has now merged their rewrite in master and are close to cut a candidate release. As we want to make a call for testing to evaluate inclusion by default next cycle, we want to have our snapshot as fresh as possible.

I've discussed with upstream, found new issues, and debugged with them (see https://github.com/andyholmes/gnome-shell-extension-gsconnect/issues/158). We now have a new snapshot in a reasonable enough state and want to ship that one instead of some months old snapshot which won't give us valuable feedback.

I've uploaded a build in my ppa as well: https://launchpad.net/~didrocks/+archive/ubuntu/ppa/+build/15506329