reference online copy of the schema

[SVN r32976]

status/explicit-failures-markup.xml

@@ -1,6 +1,6 @@
 <explicit-failures-markup
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="explicit-failures.xsd"
+    xsi:noNamespaceSchemaLocation="http://cvs.sourceforge.net/viewcvs.py/*checkout*/boost/boost/status/explicit-failures.xsd"
     >
 
     <!--