Add magento-amd and foundation4-amd

I have created a module to parse JavaScript modules defined according to [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD). It compiles them into one file, then caches that. It allows for more modular front end development, which is nice.

I also created a version of the Zurb Foundation v4 JavaScript files, slightly modified so that they export themselves as AMD modules. I request that both of these be added to the repository.

Best wishes,
Max.