updated a bit made a comment more specific more work on the Schemas

* TODO: updated a bit
* parser.c: made a comment more specific
* xmlregexp.c xmlschemas.c xmlschemastypes.c: more work on the
  Schemas conformance.
* test/schemas result/schemas: updated the test list
Daniel
diff --git a/result/schemas/empty_0_0 b/result/schemas/empty_0_0
new file mode 100644
index 0000000..88fc52b
--- /dev/null
+++ b/result/schemas/empty_0_0
@@ -0,0 +1 @@
+./test/schemas/empty_0.xml validates