Fixing URL to Jetty XML DTDs so they can be properly validated.

The old URL seems to be dead, and from looking around I found
this page <http://wiki.eclipse.org/Jetty/Reference/jetty.xml_syntax>
which pointed to the new DTD.

Change-Id: I97c6f1f3442f4e13f80ad46528945794c81b5493
2 files changed