(toplevel): Require 'cl at compile time.

(toplevel): Require 'cl at compile time.
Removed (require 'poe) and (require 'std11).
(pldap-version): Eliminated.
(ldap-search-basic): Removed auth and dn binding.
(ldap-ldif-field-name-regexp): New constant.
(ldap-ldif-field-head-regexp): Ditto.
(ldap-ldif-next-field-head-regexp): Ditto.
(ldap/collect-field): Use `ldap-ldif-field-head-regexp'.
(ldap/field-end): New function.
(ldap/field-body): Use it.
(ldap/collect-field): Ditto.
(ldap-search-basic): Use `ldap/field-body'.