if WINSOCK API is used under WinCE link with 'winsock', else

if WINSOCK API is used link with 'wsock32'.

winsock2.h is available, and library 'winsock' is used when only
winsock.h is available.

136 - adding easy handles when using curl_multi_socket* by
      Markus Koetter

Added "-DHAVE_GETTIMEOFDAY". Trimmed lines.

When cross compiling WinCE with the arm-wince-cegcc-gcc C compiler
symbol __CEGCC__ is defined and the unix-like compatibility layer
is used. For our purposes this is not a native Windows build.

When cross compiling WinCE with the arm-wince-mingw32ce-gcc C compiler
symbol __MINGW32CE__ is defined and the unix-like compatibility layer
is not used. For our purposes this _is_ a native Windows build.

when build target is not a native Windows one

HAVE_WINSOCK2_H shall not be defined.
HAVE_WS2TCPIP_H shall not be defined.

  ares_init_options()'s ARES_OPT_TIMEOUTMS.

Cleaned up Symbian files.

  and receive data over a connection previously setup with curl_easy_perform()
  and its CURLOPT_CONNECT_ONLY option. The sendrecv.c example was added to
  show how they can be used.

when function clock_gettime() is available and the monotonic timer is
also available. Otherwise, in some cases, librt or libposix4 could be used
for linking even when finally not using the clock_gettime() function due
to lack of the monotonic clock.

This also implies the removal of the winmm.lib dependency for WIN32.

liberal for me. Also, autoconf 2.61 and earlier doesn't work with icc 10.1
for this macro. (2.62 confirmed to work though). See discusson on the mailing
list starting here:

http://daniel.haxx.se/projects/c-ares/mail/c-ares-archive-2008-05/0001.shtml

  and doing CONNECT to a proxy. The app would then busy-loop until the proxy
  completed its response.

Added a few comments while at it.