libgit2 1.9.1

[Jeremy Drake]

The following packages have been uploaded to the Cygwin distribution:

* libgit2_1.9-1.9.1-1
* libgit2-devel-1.9.1-1

libgit2 is a portable, pure C implementation of the Git core methods
provided as a re-entrant linkable library with a solid API, allowing you
to write native speed custom Git applications in any language which
supports C bindings.

For information on the changes in this release, see
https://github.com/libgit2/libgit2/releases/tag/v1.9.1