Add facility to hide overflow on a per component basis.

[RyanHavoc]

Tell us about the issue you are experiencing

I have a menu that is absolutely position outside of the body element so that it is hidden. When the menu handle is click the menu animates in. Currently with Astrum the menu is floating outside of the component sample area.

What behaviour would you expect?

The component sample area needs to have overflow hidden applied to prevent this from happening.

How can this issue be replicated?

Absolutely position an element outside of the component area.

Screenshots / Screencast

N/A

Your environment

Platform: OSX
OS Version: 10.11.6
Node Version: 6.7.0
NPM Version: 3.10.3
Astrum Version: 1.8.1