first little steps towards IPv6 support!

Adapted for C++.

Return correct timeval in windows_port.c.
Squelch gcc warnings:
  use 'ares_socket_t' in ares_fds.c.
  Don't cast a 'lvalue' in ares_init.c.

properly set, and the Makefile.am is now fixed to use that when building
a new package with make dist.

  when they made Alpha's) uses /etc/svc.conf for the purpose fixed below for
  other OSes. He made c-ares check for and understand it if present.

- Now c-ares will use local host name lookup _before_ DNS resolving by default
  if nothing else is told.

  file to determine the sequence in which to search /etc/hosts and DNS.  So on
  systems where this order is defined by /etc/host.conf instead of a "lookup"
  entry in /etc/resolv.conf, C-ARES will always default to looking in DNS
  first, and /etc/hosts second.

  c-ares now looks at

  1) resolv.conf (for the "lookup" line);
  2) nsswitch.fon (for the "hosts:" line);
  3) host.conf (for the "order" line).

  First match wins.

Removed ares_free_errmem.c from MSCV project files.
Fixed line-endings to CR-LF.

sets the required HAVE_xx defines for non-DOS/Win targets.

BTW. Used eclipse IDE fo this, which really kicks ass.

Basically in loops like handle_errors(), 'query->next' was assigned a local
variable and then query was referenced after the memory was freed by
next_server(). I've changed that so next_server() and end_query() returns the
next query. So callers should use this ret-value.

The next problem was that 'server->tcp_buffer_pos' had a random value at entry
to 1st recv() (luckily causing Winsock to return ENOBUFS).

I've also added a ares_writev() for Windows to streamline the code
a bit more.