Fix significant memory leak in loading certificates with unsupported
extentions.

diff -uNr matrixssl-1-8-open.orig/src/pki/x509.c matrixssl-1-8-open/src/pki/x509.c
--- matrixssl-1-8-open.orig/src/pki/x509.c	2006-04-04 14:14:02.000000000 +0300
+++ matrixssl-1-8-2/src/pki/x509.c	2006-06-11 03:17:22.000000000 +0300
@@ -834,6 +834,7 @@
 				matrixStrDebugMsg("extension format that is not currently\n", NULL);
 				matrixStrDebugMsg("recognized.  Please email support@peersec.com\n", NULL);
 				matrixStrDebugMsg("to add support for the extension.\n\n", NULL);
+				matrixX509FreeCert(cert);
 				return -1;
 			}
 		}