gnutls32: update 3.2.4 -> .10, including CVE fixes

Also make gnutls32 the default gnutls.
CVE-2013-{4466,4487}
gnutls31: update 3.1.12 -> .20, including CVE fixes

Also make gnutls32 the default gnutls.
CVE-2013-{4466,4487}
hadoop: update, including fix for CVE-2013-2192