Add repositories panel back in

The repositories panel was a great way to get an overview of all of my projects at once, see where other developers had made changes and flick between them easily. The tab view is bloated and slow in comparison. I've always missed it on the rare occasion I've had to use my mac to compile an iOS project, but that's never been so much of an issue since I'm just working with one specific project at a time there.

Please add it back in, maybe with an option to show or hide it.