added password generator, fixes #346

Signed-off-by: Christoph Burchert (Chb) <derchb@froxlor.org>

lng/english.lng.php

@@ -1579,3 +1579,4 @@ $lng['emails']['back_to_overview'] = 'Back to overview';
 $lng['error']['user_banned'] = 'Your account has been banned. Please contact your administrator for further information.';
 $lng['serversettings']['validate_domain'] = 'Validate domain names';
 $lng['login']['combination_not_found'] = 'Combination of user and email adress not found.';
+$lng['customer']['generated_pwd'] = 'Password suggestion';