Uses now dao.isVersionUpdated(...) for 5.0 for avoiding select count(*)
from t_contract...
getUnitI8nKey added.
alterTableColumnVarCharLength(String, String, int) and
isVersionUpdated(String, String) added.
getUpdateEntries() added.
PF-418 - TeamEventDO.note: length=4000 (was 255).
init() uses now RecurrenceFrequency.getUnitI18nKey.
Show recurrence as tooltip in calendars.