Prepare arrival of Java 7u51 (14th january 2014) - update Manifest to add required/recommended new attributes according to:
- https://blogs.oracle.com/java-platform-group/entry/new_security_requirements_for_rias
- http://docs.oracle.com/javase/7/docs/technotes/guides/jweb/manifest.html


git-svn-id: http://josm.openstreetmap.de/svn/trunk@6341 0c6e7542-c601-0410-84e7-c038aed88b3b