Dvc

1) [Add shell completion to deb/rpm/mac pkgs](https://github.com/iterative/dvc/issues/2181); Kudos nik123 :tada:

1) [Improve PATH modification rules when running from pyenv](https://github.com/iterative/dvc/pull/2562);

1) [Add a friendly error for unicode on python 2](https://github.com/iterative/dvc/issues/2524);
2) [Make spaces consistent in the messages](https://github.com/iterative/dvc/pull/2544); Kudos yfarjoun :tada:
3) [Fix LD_LIBRARY_PATH issue when running git from binary dvc package](https://github.com/iterative/dvc/issues/2471);
4) [Improve ssh error messages](https://github.com/iterative/dvc/issues/2535);
5) [Make `dvc run/repro` cleanup the environment from pyenv modifications when running a command](https://github.com/iterative/dvc/issues/2506);
6) [Make `dvc run/repro` use --norc/--noprofile shell flags when running a command](https://github.com/iterative/dvc/issues/2506);

1) [Don't forget to install `psutil` when building dvc binary package with pyinstaller](https://github.com/iterative/dvc/issues/2537);

1) [Add support for reflink, hardlink, symlink for ssh external outputs](https://github.com/iterative/dvc/issues/1652);
2) [Fix `dvc move` bug](https://github.com/iterative/dvc/pull/2485);
3) [Deduplicate links on checkout and ensure proper link type and permissions](https://github.com/iterative/dvc/pull/2488);
4) [Use NFS and CIFS compatible locks in dvc repository](https://github.com/iterative/dvc/pull/2461);
5) [Fixed bug in improper relpath calculation which was causing problems with deeply nested dependencies](https://github.com/iterative/dvc/pull/2496);
6) [Prevent using dvcfiles as dependencies or outputs](https://github.com/iterative/dvc/pull/2493);
7) [Optimized imports to speedup dvc launch time](https://github.com/iterative/dvc/issues/2445);
8) [Stop corrupting git hooks by `dvc install`](https://github.com/iterative/dvc/pull/2505);
9) [Move repo locks from CLI to API](https://github.com/iterative/dvc/pull/2519);
10) [Make `dvc pull` download data for `dvc import`ed dvcfiles](https://github.com/iterative/dvc/pull/2499);
11) [Fixed bug in daemon launcher that sometimes wasn't calling the same script that it was running from](https://github.com/iterative/dvc/pull/2523);
12) [Added a workaround for `pyenv` modifying `PATH` when running `dvc`](https://github.com/iterative/dvc/pull/2525);

1) [Fix bug in our git hooks, which made them incompatible with dash](https://github.com/iterative/dvc/commit/2d2ac67e50e4614d5a4d236b15171bd3b50648e6);
2) [Don't write default wdir to DVC-files](https://github.com/iterative/dvc/pull/2478);
3) [Introduce `--always-changed` flag for `dvc run`](https://github.com/iterative/dvc/pull/2479);
4) [Fix `gitignore` bug when using `symlinks` as link type](https://github.com/iterative/dvc/issues/2476);