added Datatype ID and IDREF, usable from RelaxNG now need to add a new * relaxng.c valid.c xmlschemastypes.c: added Datatype ID and IDREF, usable from RelaxNG now * include/libxml/xmlschemastypes.h: need to add a new interface because the validation modifies the infoset * test/relaxng/testsuite.xml: extended the testsuite Daniel