Migration script for eepsite jetty.xml and jetty-ssl.xml files
Add exclude protocols

Remove dup returns

default configurations were not being run.
Revert adding JettyJspServlet class, maybe we don't need it after all.

Delete previously checked-in DTDs, and in the build,
copy all the DTDs out of jetty-schemas-3.1.jar to javax.servlet.jar.
Update to Jetty 9.2.21.

Bundle the DTDs, as extracted from jetty-schemas-3.1.jar
These were in lib/jsp/javax.servlet.jsp-2.2.0.v201112011158.jar in Jetty 8
but are not in any lib/jsp/*.jar in Jetty 9.
  GPL v2:
  Copyright 2003-2009 Sun Microsystems, Inc. All rights reserved.
  Copyright 2004 The Apache Software Foundation
  Copyright (c) 2009-2013 Oracle and/or its affiliates. All rights reserved.

            to branch 'i2p.i2p.zzz.jetty9' (head adcba23cab31b88e430ee09bf45fd1b6789a1719)

let the client do the logging.
Throw early if data too short

so the github page is restored.

     and 'aafd3b9469e494f4f106a5c60c2139947c150679'

it's undocumented, the other router implementations don't do it,
and unnecessary since we store addresses in a List, not a Set,
as of 0.8.14 2012-05

From github PR #22
https://github.com/str4d/ed25519-java/commit/747df9f9aa407ba90d34f498c5eab6f304fdd58a

Ensure blocklist is initialized before netdb