* configure.in Makefile.am: fixed Red Hat bug #86118 use libxml2.spec
  instead of libxml.spec
* relaxng.c: fixed some of the error reporting excessive
  verbosity
* catalog.c debugXML.c valid.c xmlreader.c xmlschemas.c xpath.c
  xmlschemastypes.c: removed some warnings from gcc
* doc/libxml2-api.xml: rebuilt
Daniel