Resolves: bug 431103
    Bug Description: Cannot setup ds with remote config DS
    Reviewed by: nhosoi (Thanks!)
    Branch: Directory_Server_8_0_Branch
    Fix Description: If using a non-standard config dir for the directory server, creating additional instances with setup-ds-admin.pl fails, because it doesn't take into consideration the location.  DS_CONFIG_DIR is set in DSCreate.pm to the real location of the new directory server instance config directory.
    Platforms tested: Fedora 8
    Flag Day: no
    Doc impact: no