SAK-25956 Unused i18n keys in announcement.properties, date widget has changed



git-svn-id: https://source.sakaiproject.org/svn/announcement/trunk@307476 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-25959 Split i18n strings



git-svn-id: https://source.sakaiproject.org/svn/announcement/trunk@307482 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-25960 Unused i18n key



git-svn-id: https://source.sakaiproject.org/svn/announcement/trunk@307483 66ffb92e-73f9-0310-93c1-f5514f145a0a