applied a patch from Kasimier Buchcik implementing attribute uses and

* xmlschemas.c include/libxml/schemasInternals.h
  include/libxml/xmlerror.h: applied a patch from Kasimier Buchcik
  implementing attribute uses and wildcards.
* test/schemas/* result/schemas/*: added/fixed a bunch of tests
Daniel
diff --git a/result/schemas/anyAttr-derive1_0_0 b/result/schemas/anyAttr-derive1_0_0
new file mode 100644
index 0000000..adae13d
--- /dev/null
+++ b/result/schemas/anyAttr-derive1_0_0
@@ -0,0 +1 @@
+./test/schemas/anyAttr-derive1_0.xml validates