Improve x509show display.
Improve SSL2 cipherspec type.

It is now possible to call int_of_ssl2_cipher_spec.
Bugfix on dump_ssl2_cipher_spec which did not produce the correct result on TLS suites.
Bugfix on mapAnswer: it did not end correctly on stdin.

As soon as the input was not rewindable, it ended with an exception.
Add some logic in parsifal tool to handle SSLv2/TLS sessions.

Recent versions of wget still use an obsolete SSLv2 client hello message.
To handle this, we allow for the first message to be an old SSLv2 one.
Some work on the tutorial.
Camera-ready version for CRISIS tutorial.
Took Ben's remarks into account.
Moved SSTIC 2013 slides into the right repo.