Modify ServerHello check to not fail when a named_curve extension is received by the TLS client
Add somewhat more general mechanism for handling unexpected server extensions
Add entry for previous TLS patch
Add ECDHE_ECDSA CCM ciphersuites from RFC 7251

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Fix entries for AES_256_CCM(_8)
Add contributor entry
Minor reformat