preparing to make testsuite releases along with code source releases fixed

* xstc/Makefile.am README README.tests Makefile.tests Makefile.am:
  preparing to make testsuite releases along with code source releases
* gentest.py testapi.c: fixed a couple of problem introduced by
  the new Schemas support for Readers
* xpath.c: fixed the XPath attribute:: bug #309580, #309864 in a crude
  but simple way.
* xmlschemas.c include/libxml/tree.h: fixed a couple of problems
  raised by the doc builder.
* doc/*: made rebuild
Daniel
diff --git a/README b/README
index 7726225..f1817aa 100644
--- a/README
+++ b/README
@@ -15,8 +15,8 @@
    on an Unixised setup:
       run make tests
    otherwise:
-       There is 2 standalone tools runtest.c and testapi.c, which should
-       compile as part of the build or as any application would.
+       There is 3 standalone tools runtest.c runsuite.c testapi.c, which
+       should compile as part of the build or as any application would.
        Launch them from this directory to get results, runtest checks 
        the proper functionning of libxml2 main APIs while testapi does
        a full coverage check. Report failures to the list.