add more targets

Do not try to install on mac

Added:
-H option - expect HAProxy proxy v1 header, e.g. `proxy -H`

parent ha type - send HAProxy proxy v1 header (must be last in redirection), e.g.

allow *
parent 1000 ha
parent 1000 proxy 1.2.3.4 3128
socks

…server / ssl_client aliases added to ssl_serv / ssl_cli

… SSL client configuration

ssl_client_mode
0 (default) - handshake immediately after connect() (with first parent or with destination if there is no parent)
1 - handshake with destination server (handshake after connection via parents is established)
2 - handshake after data channel is established (e.g. after CONNECT)