[josm_tageditor] update to JOSM 6316

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30055 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_building_tools] arbitrary housenumber increment (patch by kre3d)

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30057 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4