[josm_plugins] fix #josm8710 - Inconsistent MapMode focus behaviour

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29595 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_plugins] fix #josm8710 - Inconsistent MapMode focus behaviour (forgot build.xml files)

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29596 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4