[PATCH] cleanup and add ALPN to proxy-protocol-v2 (1 reply)

Hi Willy,

It’s a serie of patch about proxy-protocol-v2
1) Report #define from doc/proxy-protocol.txt.
2) cleanup after first work on implement SRV_PP_V2_SSL_CRYPTO (send-proxy-v2-ssl-crypto
not yet in the serie because add key/hash info need more work)
3) add ALPN information to send-proxy-v2 (as you suggested)

++
Manu