Updated graphite2 package fixes security vulnerabilities

Updated graphite2 packages fix security vulnerabilities: Multiple security flaws were found in the graphite2 font library. A web page or document containing malicious content could cause an application using graphite2 to crash or, potentially, execute arbitrary code with the privileges of the user running the application (CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792, CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797, CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802). The graphite2 package has been updated to version 1.3.6 which fixes these security issues.