[IMP] re-enable min and max aggregation functions because why not
[IMP] re-enable min and max aggregation functions because why not

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