Remove foundation custom forms

It will solve problems as:
- Navigating forms with keyboard not working well.
- Wrong tab order.
- Search elements on select by typing.
- Bad selects for accessibility.

The only place that we still have the custom form is on the home page:
![screen shot 2014-03-10 at 6 06 00 pm](https://f.cloud.github.com/assets/230476/2379171/dd5a31b2-a897-11e3-8e78-50aa511b6632.png)