I did a quite drastic removal of packages from my Ubuntu, and seem to have lost the sidebar / dock in Unity. The desktop icons are still there and work, but there's no way to launch applications from the side-bar or get to the terminal.
What's the name of the program / package so I can reinstall it?
Update : actually it's worse than this. I seem to have lost the ability to tab between different windows, and all the necessary Window maximize / minimize / close buttons in the "chrome" of the browser are gone too. How can I restore these?