Added the Expand() and Next() operation to work on subtrees within the

* xmlreader.c include/libxml/xmlreader.h: Added the Expand()
  and Next() operation to work on subtrees within the reader
  framework.
* doc/libxml2-api.xml python/libxml2class.txt: resulting updates
* python/tests/reader5.py: added an example for those new
  functions of the reader.
Daniel
6 files changed