Made OS400 version compilable again

RtlGenRandom, has been located or not. This function is only available on
WinXP and later. When unavailable c-ares uses portable rand() function.

  CARES_HAVE_ARES_LIBRARY_INIT and CARES_HAVE_ARES_LIBRARY_CLEANUP
  to ease the use of new capabilities.

- Move ares_version() prototype to ares.h

Introduction of ares_library_init() and ares_library_cleanup()

  no_proxy which made it not skip the proxy if the URL entered contained a
  user name. I added test case 1101 to verify.

Extend displaying of logfiles upon first server start-up failure for http, https, ftp, ftps and tftp test harness servers.

thinking straight.

unconditionally

release, or bump or whatevere

the function we should use, while both curl_multi_socket() and
curl_multi_socket_all() should be killed!

I just posted about this decision on the curl-library list.

  only expose functions starting with ares_.

not in the mood enough to fight this now.

65. When doing FTP over a socks proxy or CONNECT through HTTP proxy and the
  multi interface is used, libcurl will fail if the (passive) TCP connection
  for the data transfer isn't more or less instant as the code does not
  properly wait for the connect to be confirmed. See test case 564 for a first
  shot at a test case.