mysql: Update to 5.5.31

CVE-2013-1502, CVE-2013-1511, CVE-2013-1532, CVE-2013-1544,
CVE-2013-2375, CVE-2013-2376, CVE-2013-2389, CVE-2013-2391,
CVE-2013-2392, maybe others.
mysql: Update to 5.1.69
git: Update to 1.8.2.3