Fix CAN-2004-0885:
* modules/ssl/ssl_engine_kernel.c (ssl_hook_Access): Ensure that a
correct cipher suite has been negotiated, else deny access.
* modules/ssl/ssl_engine_init.c (ssl_init_ctx_protocol): With OpenSSL
0.9.7, prevent session resumption during a renegotiation to force the
client to negotiate a new (and acceptable) cipher suite.
Credits: Hartmut Keil, Joe Orton
310abe64ef