bzr revid: odo@openerp.com-20140218171508-6li402027u57ltrx
bzr revid: jke@openerp.com-20140115102941-51rdgpoecc4k8e12
Remove 2 unsused field from calendar.event model (dir,sequence) bzr revid: jke@openerp.com-20140115093805-1g1j1oymyxsb6kgh