add quota-plugin parameters to dovecot-config-templates; update standardcustomer index.html; set nameserver disabled by default

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

install/froxlor.sql

@@ -532,7 +532,7 @@ opcache.interned_strings_buffer'),
 	('system', 'vmail_gid', '2000'),
 	('system', 'vmail_homedir', '/var/customers/mail/'),
 	('system', 'vmail_maildirname', 'Maildir'),
-	('system', 'bind_enable', '1'),
+	('system', 'bind_enable', '0'),
 	('system', 'bindconf_directory', '/etc/bind/'),
 	('system', 'bindreload_command', '/etc/init.d/bind9 reload'),
 	('system', 'hostname', 'SERVERNAME'),