Fixed setting of socket.timeout in httpd (was not currently set before).

Adopted the nanoseconds timeout precision
 - in config file added support for ns, us, ms, s timeout precision (without indication, it uses `seconds` precision).

examples/websocket/ws.ini

@@ -4,10 +4,10 @@ port=9090
 max_concurrent_connections=100
 max_tcp_clients=100
 socket_timeout=30
-socket_recv_timeout=5
+socket_recv_timeout=100 ms
 
 #Persistent connections
-keep_alive_timeout=2
+keep_alive_timeout=50 ms
 max_keep_alive_requests=-1
 
 #SSL