Bug 1023663 - [User story] Calendar day view should start at 8 AM r=millermedeiros

Currently, the patch is for ui review. It is not ready for code review.
this looks better:

```js
        content.style.transition = 'transform ' + seconds + 's ' +
          // easeOutQuart borrowed from http://matthewlein.com/ceaser/
          'cubic-bezier(0.165, 0.840, 0.440, 1.000)';
```