Added function "is_superadmin" in auth library and improved other functions.

Till Brehm

2014-08-13 19b5e01da02aa2115ee802cf2e43a7f3e58f4eac

 interface/web/sites/lib/lang/el_ftp_user.lng

@@ -31,5 +31,6 @@
$wb['repeat_password_txt'] = 'Repeat Password';
$wb['password_mismatch_txt'] = 'The passwords do not match.';
$wb['password_match_txt'] = 'The passwords do match.';
$wb['invalid_system_user_or_group_txt'] = 'Invalid system user or group';
$wb['directory_error_regex'] = 'Invalid directory';
?>