LDAPPooledConnections (Persistent LDAP connections) implementation did not handle the case   where:   - establish connection to ldap   - established connection is stored in connection pool   - ldap is shut down and restarted   - stored ldap connection (which now is invalid) is reused   -> should do a on the fly reconnect if this situation is detected Changed code, adjusted testcases
LDAPPooledConnections (Persistent LDAP connections) implementation did not handle the case
  where:
  - establish connection to ldap
  - established connection is stored in connection pool
  - ldap is shut down and restarted
  - stored ldap connection (which now is invalid) is reused
  -> should do a on the fly reconnect if this situation is detected
Changed code, adjusted testcases

zer0infinity/CuteTestForCoastTest,zer0infinity/CuteTestForCoastTest,zer0infinity/CuteTestForCoastTest,zer0infinity/CuteTestForCoastTest,zer0infinity/CuteTestForCoastTest