make it compile under MSN vc. Unfortunately it has a weird crash at boot :(

- Lots of indenting changes
- VC++ is strict with variadic macros
- VC++ does not accept unistd.h
- new interface for walltime
- VC++ does not seem to have support for integer overflow.
- VC++ defines YENV_REG?
- no access flags, x permissions ignored.
- new FindGMP supporting MPIR
- make horus optional (c++ is hard).

library/lists.yap

@@ -47,11 +47,6 @@
 	   sumlist/2
 	  ]).
 
-:- if( source_module(prolog) ).
-
-:- reconsult(bootlists).
-
-:- endif.
 
 /** @defgroup lists List Manipulation
 @ingroup library