Update to New DN Format
    
    Fix Description:
    . adding slapi_dn_normalize_ext and its siblings to normalize/validate
      invalid DNs; deprecating slapi_dn_normalize and its siblings. (dn.c)
    . replacing slapi_dn_normalize with new corresponding functions.
    . normalizing hardcoded DNs (e.g., removing spaces around ',')
    . setting correct DN syntax to nsslapd-suffix, nsslapd-ldapiautodnsuffix,
      costemplatedn, nsslapd-changelogsuffix, nsBaseDN, nsBindDN
    . if nsslapd-dn-validate-strict is enabled, incoming DN is examined and
      rejected if it is invalid.  Once approved, the DN is normalized.
    . fixing compiler warnings and typos.
    
    See also:
    http://directory.fedoraproject.org/wiki/Upgrade_to_New_DN_Format
    
    Related bugs:
    Bug 199923 - subtree search fails to find items under a db containing special
                 characters
    Bug 567968 - subtree/user level password policy created using 389-ds-console
                 doesn't work.
    Bug 570107 - The import of LDIFs with base-64 encoded DNs fails, modrdn with
                 non-ASCII new rdn incorrect
    Bug 570962 - ns-inactivate.pl does not work
    Bug 572785 - DN syntax: old style of DN <type>="<DN>",<the_rest> is not
                 correctly normalized
    Bug 573060 - DN normalizer: ESC HEX HEX is not normalized
    Bug 574167 - An escaped space at the end of the RDN value is not handled
                 correctly