Bug#814222: openslide 3.4.1 is out

[Mathieu Malaterre]

Package: src:openslide

Version 3.4.1 has been out for quite some time.

Whoever does the upload, should make sure to integrate patch from git/master:

https://lists.andrew.cmu.edu/pipermail/openslide-users/2015-November/001146.html