fix broken bswap on MSVC64

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13653 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
porting to MSVC64; some cleanup; ignore .obj and .lib files

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13654 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
porting to MSVC64; some cleanup; ignore .obj and .lib files

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13655 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
remove debug message

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13656 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
ignore .obj and .lib files

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13657 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02