Ide update

[Pivotal Tracker](https://www.pivotaltracker.com/story/show/65891588)
[Heroku](https://codealia-bryan.herokuapp.com/code-playground)

* First iteration of the Codealia IDE using **AngularJS** and **ace**
* Rewrote *jasmine* tests for new IDE
* Imported `ace/**.js`, `angular.min.js`, `angular-routes.min.js` and `angular-mocks.js`
* Preview page CSS place-holder created -- `public/stylesheets/workshop.css`