bump version to 1.1.21
- Ticket 47929 - adminutil - future proof getSSLVersion
- Ticket 47929 - Adminutil - do not use SSL3 by default
- Ticket 47850 - "nsslapd-allow-anonymous-access: rootdse" makes login as "admin" fail at the first time
- Ticket 47881 - crash during debug session in adminutil
- Ticket 47680 - Upgraded 389-admin rpms and now I can't start dirsrv-admin