preparing a beta3 solving the ABI problems make sure the global variables

* configure.in: preparing a beta3 solving the ABI problems
* globals.c parser.c parserInternals.c testHTML.c HTMLparser.c SAX.c
  include/libxml/globals.h include/libxml/SAX.h: make sure the
  global variables for the default SAX handler are V1 ones to
  avoid ABI compat problems.
* xmlreader.c: cleanup of uneeded code
* hash.c: fix a comment
Daniel
diff --git a/hash.c b/hash.c
index 9f1d3bb..3fb8552 100644
--- a/hash.c
+++ b/hash.c
@@ -427,7 +427,7 @@
  * @table: the hash table
  * @prefix: the prefix of the userdata
  * @name: the name of the userdata
- * @prefix: the second prefix of the userdata
+ * @prefix2: the second prefix of the userdata
  * @name2: a second name of the userdata
  *
  * Find the userdata specified by the QNames tuple