Fix the 'ssltunnel with KeepAlive Off' tests.
Fix the 'ssltunnel with KeepAlive Off' tests.

* test/test_context.c
  (ssltunnel_basic_auth): Don't test for requests received once and in order, 
       because the CONNECT request will be received twice (once on the second
       connection).
  (test_ssltunnel_digest_auth): Add comment.

jandre/serf,jandre/serf,jandre/serf,jandre/serf