* check-xinclude-test-suite.py: improved the script accordingly
  to the XInclude regression tests updates
* xpointer.c: Implemented XPointer element() Scheme W3C PR of 13
  November 2002
* result/XPath/xptr/chapterschildseq result/XPath/xptr/vidchildseq
  test/XPath/xptr/chapterschildseq test/XPath/xptr/vidchildseq:
  augmented the Xpointer testsuite for the element() scheme
Daniel