Improvement and a couple of animation variation.

- A bit of performance Improvement if not 60FPS it's closer now.
- New Global Object `Effeckt.js` which now handle transitionEnd, AnimationEnd and button pressed event (click or touch)
- Some variables name was changed
- Add more direction to `revolving-door` effect in Captions after a PR resolve a problem.
- Add off-screen-nav `top-rotate` and `bottom-rotate`