Allow all curves when the client doesn't send an supported elliptic curves extension
Allow all curves when the client doesn't send an supported elliptic curves extension

At least in the case of SSLv3 we can't send an extention.

Reviewed-by: Matt Caswell <1fa2ef4755a9226cb9a0a4840bd89b158ac71391@openssl.org>
MR #811

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl