Bug 670616 - Allow SSF to be set for local (ldapi) connections
    
    This patch adds a new config parameter named nsslapd-localssf.
    This parameter can be set to the SSF that one wants to apply for
    ocal (LDAPI) connections.  This SSF will be used with the minssf
    global and ACI settings.  The local SSF can also be used to satisfy
    the confidentiality requirements for secure binds and password
    modify extended operations.