Add option for relaxed X509 time verification.

The certificates are not valid according to the RFC, but are in wide
distribution across the internet. Hence the request to add a
compile-time flag to accept these certificates if wanted by the
application.

If POLARSSL_RELAXED_X509_DATE is enabled it will allow dates without
seconds, and allow dates with timezones (but doesn't actually use
the timezone).

Patch provided by OpenVPN.
3 files changed