Feature/product update

Moved bootstrap.css above dashboard.css in the stack (dashboard/layout.html) - fixing  style mixup -- ie bootstrap over writing the dashboard styles.

Dashboard - product_update.html
- Seb updated attribute rich text areas to textareas
- Added tab design
- Added variants child/parents
- Added overview (only if product exists)
- Restructured layout of stock, attributes, recommended
- Jon M added recommended
- Added Chosen.js for type/search -- on select fields
- Added related products

![Screen shot 2013-02-01 at 12 13 36 PM](https://f.cloud.github.com/assets/726265/116899/a4467c1e-6c0c-11e2-9cd8-9217f3652bd2.png)