[IMP] Form: only save record when there's something to save. Use <instance>.log()
[IMP] Form: only save record when there's something to save. Use <instance>.log()


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