Kill events

This pull request removes code including JS and CSS that has to do with events aka storytelling.

## Before

Metrics for common/app/assets/stylesheets/global.min.css
> Total rules: 660
> Total selectors: 978
> Average selectors per rule: 1.5
> File size: 137.67 Kb
> GZip size: 39.37 Kb

Metrics for common/app/assets/stylesheets/story.min.css
> Total rules: 132
> Total selectors: 151
> Average selectors per rule: 1.1
> File size: 11.28 Kb
> GZip size: 2.56 Kb

## After

Metrics for common/app/assets/stylesheets/global.min.css
> Total rules: 526
> Total selectors: 776
> Average selectors per rule: 1.5
> File size: 123.78 Kb
> GZip size: 37.00 Kb

Metrics for common/app/assets/stylesheets/story.min.css
DELETED

![Getting rid of everything](http://i.imgur.com/TSGyhcy.gif)