SSL AEAD support.

This change allows AEADs to be used in ssl/ to implement SSL/TLS
ciphersuites.
diff --git a/ssl/ssl3.h b/ssl/ssl3.h
index 04d2e0c..43fc22d 100644
--- a/ssl/ssl3.h
+++ b/ssl/ssl3.h
@@ -529,6 +529,7 @@
 		unsigned char *key_block;
 
 		const EVP_CIPHER *new_sym_enc;
+		const EVP_AEAD *new_aead;
 		const EVP_MD *new_hash;
 		int new_mac_pkey_type;
 		int new_mac_secret_size;