SOS-1226 Create SOAnnouncementsEntryLocalServiceImpl.java
SOS-1226 override addEntry and checkEntries
SOS-1226 move sendNotificationEvent to SOAnnouncementsEntryLocalServiceImpl.java
SOS-1226 remove imports
SOS-1226 do not send notification if announcement has not been displayed
SOS-1226 check for newly displayed entries and send notification event