TroopJS Update

I wanted to fix the XSS issue (#397) and found a few more things worth fixing:

- I removed the comments from the templates
- Replaced double with single quotes where possible and some other style changes
- Added a module for escaping (based on the underscore.js implementation) and opened an [issue](https://github.com/troopjs/troopjs-requirejs/issues/5) for native support in their templating system

I also think this should actually go in labs/dependency-examples, but that should probably be a separate PR to keep this reviewable.