send psutil >=2.0 compatibility patch to (python-)gnupg
Related to #4834 (closed), we need to get rid of the pinning on psutil==1.2.1 that the (python-)gnupg wrapper that we're using does. We already have some compatibility fixes in place for leap code, that could be reused. Send a patch upstream.
(from redmine: created on 2014-06-04, closed on 2014-07-14, precedes #4834 (closed))