Test ECC certificates.
Test ECC certificates.
Added ugly methods to generate root and site certificates.
SSL.sslfile: Support pending data in accept().

In some circumstances part of the ssl handshake may have been read
from the stream before initializing the ssl connection.
More generic fix.
Check the date of all certificates in the chain.
Test some more verify_certificate_chain faiilure modes. This demonstrates why the API is poor.
SSL.Connection: Added some doc for got_data().

Removed some dead code in got_data() that originated in
the old blocking-mode.

Also improved a few types.