fixed the data callback on transition functionality which was broken when

* xmlregexp.c: fixed the data callback on transition functionality
  which was broken when using the compact form
* result/schemas/*: updated the results, less verbose, all tests
  pass like before
* DOCBparser.c testAutomata.c testC14N.c testSchemas.c testThreads.c
  testXPath.c valid.c xinclude.c xmllint.c xmlregexp.c xmlschemas.c
  xmlschemastypes.c xpath.c python/libxml.c: removed a bunch of
  annoying warnings
* xpath.c: try to provide better error report when possible
Daniel

testThreads.c

@@ -126,7 +126,7 @@ main()
 
 #else /* !LIBXML_THREADS_ENABLED */
 int
-main()
+main(void)
 {
     fprintf(stderr, "libxml was not compiled with thread or catalog support\n");
     return (0);