fix deprecations, cleanup some more build.xml's

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29351 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
cleanup build file

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29352 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4