[josm_opendata] Update to JOSM 6031

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29706 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_pbf] Update to JOSM 6031

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29708 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_imagery_xml_bounds] Update to JOSM 6031

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29710 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4