new or changed translations for individual languages:
da: "Note" (not changed, but da.po does not translate this anymore?)
-ia: "Graph", "List of Graphs"
-ja: "Conjecture", "Question", "Remark"
nb: "Chart", "Exercise", "Graph", "List of Algorithms", "List of Charts",
"List of Graphs", "List of Schemes", "List of Tableaux", "Note", "Scheme",
"Tableau"