fixed issue with delete mail-backups when removing a email-user / email-domain

Florian Schaal

2015-01-16 55c012f85a6768b2e6a918de3a4f8bba6fd8cc6e

 install/sql/incremental/upd_0011.sql

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