applied patch from Andrew W. Nosenko to expose if zlib support was

* configure.in parser.c xmllint.c include/libxml/parser.h
  include/libxml/xmlversion.h.in: applied patch from Andrew W. Nosenko
  to expose if zlib support was compiled in, in the header, in the
  feature API and in the xmllint --version output.
Daniel
6 files changed