Change file mode of backups that are made available for download to 0600.

Till Brehm

2016-06-27 65ee3af0845f20cd3ae4a3d0c2ee3ce865f7fc7c

 install/sql/incremental/upd_0011.sql

New file
@@ -0,0 +1,2 @@
-- use text for groups
ALTER TABLE `sys_user` CHANGE `groups` `groups` TEXT;