luasocket/TODO

setup error messages in the default case.

ajeitar o connect com a dica do mike
    if ((err > 1 || !FD_ISSET(sock, &wfds)) &&
    recv(sock, &dummy, 0, 0) < 0 && errno != EWOULDBLOCK) ...

sort out the wrap around of gettime...
    use doubles all over
    tm_get e tm_getretry return the timeval structure pointer
    sock_send, sock_recv & sock_select use p_tm instead of timeout
    make select interrupt safe (will be with tm stuff)
    use GetSystemTimeAsFileTime in windows (WinCE will suffer document)

optmize aux_getgroupudata
    make aux_newclass receive upvalues
    use one upvalue per string name of class/group
    make aux_checkgroup by upvalue (faster)

fix local domain socket kludge of name size

make sure all modules that can use it actually use socket.newtry
adicionar exemplos de expans<6E>o: pipe, local, named pipe
Add service name translation.
testar os options!
- Fazer compilar com g++
- Thread-safe
  - proteger get*by*.* com um mutex GLOBAL!
  - proteger ou atomizar o conjunto (timedout, receive), (timedout, send)
  - inet_ntoa tamb<6D>m <20> uma merda.
- SSL