Ignore invalid SSL Certificates in serf_get.
* test/serf_get.c
(conn_setup): Set the SSL Cert validation callback.
(ignore_all_cert_errors): New function that you should never
use in production software *grin*.
git-svn-id: https://svn.apache.org/repos/asf/serf/trunk@1698770 13f79535-47bb-0310-9956-ffa450edef68