IMPROVEMENTS
* Add really basic `dulwich.porcelain.fsck` implementation.
(Jelmer Vernooij)
* When the `DULWICH_PDB` environment variable is set, make
SIGQUIT open pdb in the 'dulwich' command.
* Add `checkout` argument to `Repo.clone`.
(Jelmer Vernooij, 503)
* Add `Repo.get_shallow` method. (Jelmer Vernooij)
* Add basic `dulwich.stash` module. (Jelmer Vernooij)
* Support a `prefix` argument to `dulwich.archive.tar_stream`.
(Jelmer Vernooij)
BUG FIXES
* Fix handling of encoding for tags. (Jelmer Vernooij, 608)
* Fix tutorial tests on Python 3. (Jelmer Vernooij, 573)
* Fix remote refs created by `porcelain.fetch`. (Daniel Andersson, 623)
* More robust pack creation on Windows. (Daniel Andersson)
* Fix recursive option for `porcelain.ls_tree`. (Romain Keramitas)
TESTS
* Some improvements to paramiko tests. (Filipp Frizzy)