SSL: Default the session curve from the cert on clients too.
Disabled unused-function. We have too many of those.
Backend: Repaired support for /dev/poll.

The support for /dev/poll got broken by an extraneous PDUNUSED().
SSL.https: Accept all SNI's with the test cert.

The inlined test certificate is for "demo server", which causes
it to not be selected by the new SNI-based code unless forced.
SSL.Constants.CertificatePair: Added _sprintf().
Updated to tzdata2014a.
SSL.Constants.CertificatePair: Fixed typo in debug.