a few VMS updates from John A Fotheringham added

* vms/readme.vms vms/build_libxml.com nanoftp.c
  include/libxml/xmlversion.h.in: a few VMS updates from
  John A Fotheringham
* include/libxml/xmlIO.h xmlIO.c: added xmlCleanupInputCallbacks()
  and xmlCleanupOutputCallbacks() for the Perl binding people.
Daniel
6 files changed