new: unison2.40; updated: unison2.32, unison2.27

There are several updates to the Unison packages for Cygwin:

* unison2.40 - New Cygwin package.  Current beta release upstream.

* unison2.32 - Updated; documentation updates only.  Current stable release
upstream.

* unison2.27 - Updated; documentation updates only.  Although officially
deprecated upstream, this version is still current in e.g. Debian
stable/lenny and Ubuntu lucid, so it will continue to be supported in
Cygwin for some time.

Unison is a file synchronizer for Unix and Windows. It allows two replicas
of a collection of files and directories to be stored on different hosts
(or on different disks on the same host), modified separately, and then
brought up to date by propagating the changes in each replica to the other.

=========================
Unison packages in Cygwin
=========================

Unison is packaged for Cygwin as several independent packages, each
providing a version of Unison that is incompatible with the others.  You
have to run compatible versions of Unison on the client and server, or
Unison will issue an error message and quit.  Two versions of Unison are
compatible if and only if the first two numbers in their version strings
are the same.  For example, all versions 2.32.* are mutually compatible,
and incompatible with versions 2.27.*.  By installing one or more of these
packages side by side, you can use whichever one you need to synchronize
with a particular host.  Please read /usr/share/doc/unison*/README.Cygwin