"" is a valid hexbinary string dixit xmlschema-dev update the test. added

* xmlschemastypes.c: "" is a valid hexbinary string dixit xmlschema-dev
* result/schemas/hexbinary_0_1.err test/schemas/hexbinary_1.xml:
  update the test.
* test/ns5 result//ns5*: added a test for the namespace bug fixed
  in previous commit.
* Makefile.am: added a message in the regression tests
Daniel
diff --git a/test/ns5 b/test/ns5
new file mode 100644
index 0000000..d75d345
--- /dev/null
+++ b/test/ns5
@@ -0,0 +1,4 @@
+<element name="foo" xmlns:rng="http://example.org/ns/1" xmlns="http://example.org/ns/1">
+  <empty/>
+</element>
+