i18n update and javadoc fixes

git-svn-id: http://josm.openstreetmap.de/svn/trunk@5832 0c6e7542-c601-0410-84e7-c038aed88b3b
see #8571 - Small improvements to status report

git-svn-id: http://josm.openstreetmap.de/svn/trunk@5833 0c6e7542-c601-0410-84e7-c038aed88b3b