Bootstrap

Most of the sites I've built lately have used [Bootstrap](http://getbootstrap.com/), especially the type of apps we'll be building using this stack.

I went ahead and added it to this prototype so that we can get used to it but I think I'll make it optional when I update the [generator](https://github.com/trabian/generator-trabian-webapp). I know of at least one potential project that will use a different front-end framework.

Any questions?

cc @trabian/client-side