Add The Tor Project to license/copyright headers
As I was updating the copyright headers and the LICENSE file, I realized that @meskio's contributions to this project are potentially subjected under the copyright of The Tor Project according to US law.
Even if this has no legal repercussions for us, I was wondering if it might be best to also mention The Tor Project in copyright headers and the LICENSE because of it. For me, it would feel appropriate to do so.