fixed the initialization of the SAX structure which was breaking xsltproc

* parserInternals.c: fixed the initialization of the SAX structure
  which was breaking xsltproc
* xpath.c: patch from Petr Pajas for CDATA nodes
* tree.c: patch from Petr Pajas improving xmlGetNodePath()
* parser.c include/libxml/parser.h: patch from Peter Jones
  removing a leak in xmlSAXParseMemory() and adding the
  function xmlSAXParseMemoryWithData()
Daniel
6 files changed