Clients can now have client-templates (template custom coming soon)

install/sql/ispconfig3.sql

interface/web/client/client_edit.php

interface/web/client/client_template_del.php

interface/web/client/client_template_edit.php

interface/web/client/client_template_list.php

interface/web/client/form/client.tform.php

interface/web/client/form/client_template.tform.php

interface/web/client/templates/client_edit_limits.htm

interface/web/client/tools.inc.php