symbols-in-versions: Added CURLHEADER_*

... and sorted the list

docs/libcurl/symbols-in-versions

@@ -193,6 +193,8 @@ CURLFTP_CREATE_DIR_RETRY        7.19.4
 CURLGSSAPI_DELEGATION_FLAG      7.22.0
 CURLGSSAPI_DELEGATION_NONE      7.22.0
 CURLGSSAPI_DELEGATION_POLICY_FLAG 7.22.0
+CURLHEADER_SEPARATE             7.36.0
+CURLHEADER_UNIFIED              7.36.0
 CURLINFO_APPCONNECT_TIME        7.19.0
 CURLINFO_CERTINFO               7.19.1
 CURLINFO_CONDITION_UNMET        7.19.4
@@ -498,11 +500,11 @@ CURLOPT_SSLKEY                  7.9.3
 CURLOPT_SSLKEYPASSWD            7.9.3         7.17.0
 CURLOPT_SSLKEYTYPE              7.9.3
 CURLOPT_SSLVERSION              7.1
-CURLOPT_SSL_ENABLE_ALPN         7.36.0
-CURLOPT_SSL_ENABLE_NPN          7.36.0
 CURLOPT_SSL_CIPHER_LIST         7.9
 CURLOPT_SSL_CTX_DATA            7.10.6
 CURLOPT_SSL_CTX_FUNCTION        7.10.6
+CURLOPT_SSL_ENABLE_ALPN         7.36.0
+CURLOPT_SSL_ENABLE_NPN          7.36.0
 CURLOPT_SSL_OPTIONS             7.25.0
 CURLOPT_SSL_SESSIONID_CACHE     7.16.0
 CURLOPT_SSL_VERIFYHOST          7.8.1