Missing lifecycle interfaces in Schedule component

[cgalvarez]

I think the exported class Schedule of the component primeng/schedule should implement all the interfaces of the defined lifecycle hook methods, like in exported class Calendar of the component primeng/calendar.

I don't know if this leads to any error. As far as I've been playing with the component it appears to work fine, but I think it should be export class Schedule implements AfterViewInit, OnDestroy, DoCheck {. Maybe I'm wrong... I'm pretty newbie to Angular2.