lighttpd thinks it runs out of fds in high volume environments

[tsunami650]

server *src->cur_fds is incremented in _tcp_server_connect, but not decremented in _tcp_server_disconnect, eventually tricking lighttpd into thinking it is out of fds. Fix:

*** mod_websocket.c 2011-07-19 14:48:06.000000000 -0700
--- updated-mod_websocket.c 2011-08-23 07:33:28.000000000 -0700

---

*** 283,290 ****
--- 283,291 ----
DEBUG_LOG("sd", "disconnect server:", hctx->fd);
fdevent_event_del(hctx->srv->ev, &(hctx->fd_idx), hctx->fd);
fdevent_unregister(hctx->srv->ev, hctx->fd);
mod_websocket_tcp_server_disconnect(hctx->fd);

•     hctx->srv->cur_fds--;
    hctx->fd = -1;
  

  }
  }