#2816: Add a button "Close and save window"
#2816: Add a button "Close and save window"

lsaffre/lino,lsaffre/lino,lsaffre/lino,lino-framework/lino,lino-framework/lino,lino-framework/lino,lsaffre/lino,lino-framework/lino,lino-framework/lino,lsaffre/lino