Bump version to 1.3.7.4
Ticket 49371 - Cleanup update script
Ticket 48831 - Autotune dncache with entry cache.
Ticket 49312 - pwdhash -D used default hash algo
Ticket 49043 - make replication conflicts transparent to clients
Ticket 49371 - Fix rpm build
Ticket 49371 - Template dse.ldif did not contain all needed plugins
Ticket 49295 - Fix CI Tests
Ticket 49050 - make objectclass ldapsubentry effective immediately