[Unison-hackers] New beta-release (2.51.2)

[Benjamin C. Pierce]

We just exported a new beta-release.  You can grab it here:
   http://www.cis.upenn.edu/~bcpierce/unison/download.html
Or here:
  https://github.com/bcpierce00/unison

Please let me know if you notice any problems.  By default, I’ll promote it to stable in a couple weeks.

Thanks to everybody that contributed!

   - Benjamin


Changes since 2.48:
     * Repository transplanted from SVN to Git and moved to GitHub
       (https://github.com/bcpierce00/unison).
     * Add a new preference, 'atomic', for specifying directories that
       should be treated atomically: if there are changes within such a
       directory in both replicase, the whole directory is marked as a
       conflict instead of propagating any of the changes. Thanks to
       Julian Squires for submitting this patch!
     * OSX / macOS
          + Ported to 10.13, High Sierra, and Apple's new APFS (earlier
            versions of Unison break because of new behavior of
            AppleDouble files)
          + Replaced Growl with OS X native notification center.
     * Miscellaneous:
          + The OCaml compiler version is now included in the "connection
            header -- the string that's printed when connecting to a
            remote server -- to facilitate debugging version mismatch
            issues.
          + Compatible with OCaml 4.06.
          + Added a DockerFile for the convenience of Docker users.
          + Many small bugfixes and UI improvements.