renaming testCatalog as xmlcatalog, making it an installed app adding a

* Makefile.am xmlcatalog.c libxml.spec.in: renaming
  testCatalog as xmlcatalog, making it an installed app
  adding a shell, and preparing it to be a /etc/xml/catalog
  management tool, though not ready yet
* catalog.c include/libxml/catalog.h: adding support for
  XML Catalogs http://www.oasis-open.org/committees/entity/
  not finished, there is some interesting tradeoffs and a
  few open questions left.
Daniel
diff --git a/xmlIO.c b/xmlIO.c
index 6360d04..981528f 100644
--- a/xmlIO.c
+++ b/xmlIO.c
@@ -3,7 +3,7 @@
  *
  * See Copyright for the status of this software.
  *
- * Daniel.Veillard@w3.org
+ * daniel@veillard.com
  *
  * 14 Nov 2000 ht - for VMS, truncated name of long functions to under 32 char
  */