[FIX] osv exception message not displayed anymore
[FIX] osv exception message not displayed anymore

Reverted part of revid:chs@openerp.com-20121108145001-pswe7r5ss4nzgu00


havt/openerp-web,akretion/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,havt/openerp-web