allow class SQLBrain in restricted code, as it is now available directly in listbox methods when they use objectValues as list method since this commit :
http://cvs.erp5.org/ERP5Form/ListBox.py?r1=2.93&r2=2.94


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4163 20353a03-c40f-0410-a6d1-a30d3c3de9de