Changelog update and version bumps.

tor-browser-bundle.git author: Georg Koppen <gk@torproject.org>
tor-browser-bundle.git commit: 0d192217fc71cccf16bce16e3904460b0991b43d
tor-browser-bundle.git commit: 6d54b0e2b8cf45fb817e2bbc822c61e5a4ad78de
tor-browser-bundle.git commit: 1a15760dcb3889417809ab4a38bf4b523ecf74a7
tor-browser-bundle.git commit: 8b061ed2d5112c006a80723ea63333d0098b94c4