critical client control handling
	tls cert checking
	sasl/tls ref handling
	empty dn handling
Also removed ufn search (normally I would have left it
in but the merge was easier this way).

+ Fixed clients printf/usage bugs (ITS#749)
+ Fixed slapd spasswd support (ITS#751)
+ Fixed --enable-spasswd (ITS#751)
+ Fixed ldif(5) file:/// bug (ITS#750)

+       Fixed -lldap SASL got_max_ssf bug
+       Fixed -lldap TCP_NODELAY bug
+       Fixed -llutil sa_flags never set bug
+       Removed lint
plus
	clients/tools ldap_init() fixes
	-lldap SASL fixes
	binary syntax ";binary" transfer change

  Fixed clients & -lldap KBIND (ITS#717)
  Fixed clients/tools -R handling
  Fixed slapd IPv6 issues (ITS#716)
  Fixed slapd kpasswd MIT Compatibility (ITS#715)
  Fixed slapd time syntax routines (ITS#713)
  Fixed ldappasswd -A -S crash (ITS#714)
  Fixed ldappasswd user argument usage and man page
  Fixed ldapmodify man page

	updated connection close deadlock avoidance
	SSF ACL fixes
	updated SQL docs
	updated client tool usage

ldap_result() call fixes

Remove back-perl, back-sql, back-tcl from branch as they have yet
to be updated.
Additional changes are needed prior to release of alpha4.

Move OPENLDAP_REL_ENG_2_MP forward.