fixed namespace bug in push mode reported by Rob Richards added it to the

* parser.c: fixed namespace bug in push mode reported by
  Rob Richards
* test/ns6 result//ns6*: added it to the regression tests
* xmlmodule.c testModule.c include/libxml/xmlmodule.h:
  added an extra option argument to module opening and defined
  a couple of flags to the API.
Daniel
20 files changed