* debugXML.c: added help for new set shell command
* xinclude.c xmllint.c xmlreader.c include/libxml/parser.h:
  added parser option to not generate XInclude start/end nodes,
  added a specific option to xmllint to test it fixes #130769
* Makefile.am: regression test the new feature
* doc/xmllint.1 doc/xmllint.xml: updated man page to document option.
Daniel