Round 2 of tools work.

Round 2 of tools work.
-R now ignored
-C added to chase.  No rebind proc yet, no checking of appropriate authentication.
complain if non-critical TLS was not started.
Fail if requested version is not supported.
ldapdelete:
  deletechildren modified to use ldap_search_ext_s()
  fixed deletechildren dn memory leak
ldapsearch:
  modified to use ldap_search_ext()