[josm_reverter] fix #josm9151 - unable to revert a changeset when a way has been deleted with all its nodes

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30000 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_utilsplugin2] fix #9118 - conflict with core + fix warnings

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30002 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_openstreetbugs] fix #josm8840 - Disable the possibility of adding new reports

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30004 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4