forward caught exception to next filter (#156)

minor cleanup

Author: chrjohn

quickfixj-core/src/test/java/quickfix/mina/ssl/SecureSocketTest.java

@@ -68,6 +68,7 @@ public void testLogonWithBadCertificate() throws Exception {
                 public void exceptionCaught(NextFilter nextFilter, IoSession session, Throwable cause) throws Exception {
                     log.info("MINA exception: {}", cause.getMessage());
                     exceptionCaught.countDown();
+                    nextFilter.exceptionCaught(session, cause);
                 }
             }));