* legacy.c: remove the warning for startDocument(), as it is used by
  glade (or glade-python)
* parser.c relaxng.c xmlschemastypes.c: fixed an assorted set of
  invalid accesses found by running some Python based regression
  tests under valgrind. There is still a few leaks reported by the
  relaxng regressions which need some attention.
* doc/Makefile.am: fixed a make install problem c.f. #124539
* include/libxml/parserInternals.h: addition of xmlParserMaxDepth
  patch from crutcher
Daniel