Merge remote-tracking branch 'origin/translation' into master

diff --cc Documentation/es/notation/rhythms.itely
Simple merge

diff --cc Documentation/fr/notation/ancient.itely
Simple merge

diff --cc Documentation/fr/notation/changing-defaults.itely
Simple merge

diff --cc Documentation/fr/notation/vocal.itely
Simple merge

diff --cc Documentation/it/search-box.ihtml
Simple merge