REGISTRAR: Dropped support for old notification tags

- Tags with Cert,Kerb,Krb,Fed,Non,Google at the end won't be
  replaced anymore. You will need to use new "-[authz]" ending.

All old tags are already removed from production DB.

Once merged, following properties can be removed from perun-registrar-lib.properties: perunGuiFederation, perunGuiKerberos, perunGuiCert, perunGuiGoogle, registrarGuiNon, registrarGuiKrb, registrarGuiFed, registrarGuiCert, useMailManager.