Fix some naming conventions aberrations.
Add tests to ensure consistency between the two sets of symbols.

Add ip_mreq, ip_mreq_source and ip_msfilter to ws2tcpip.h.

directives in our .h files. This should avoid some potentially nasty
surprises for Winelib apps.

- Remap winsock1 constant values to winsock2 using a forwarder
  function.
- Change a FIXME to a TRACE, it appeared to be simply reporting
  progress.

circumstances.

conflicts with Unix headers.

Gouget).

compatibility (needed by winsock.h as well).

-> winsock.h.

- Make winsock compile without WINE_NO_STRICT.

defined.
Fixed if statement in __WS_FD_SET2 which used a = where a == is
needed, in additition the if did not have its outer set of
parenthesis.
Removed parentheses around type to be cast in __WS_FD_SET macro.
Removed WS macro usage from within other macros because the WS macro
is undefined when these macros are expanded.
Added WINAPI attributee to select definition.