Updated znc package fixes CVE-2013-2130

Updated znc packages fix security vulnerability: Multiple vulnerabilities were reported in ZNC version 1.0 which can be exploited by malicious authenticated users to cause a denial of service. These flaws are due to errors when handling the “editnetwork”, “editchan”, “addchan”, and “delchan” page requests; they can be exploited to cause a NULL pointer dereference (CVE-2013-2130).