Feature/way more styles

[ajb]

@jrubenoff: This is my attempt at styling a cross-browser file picker. It doesn't really work too well, though... in old IE, you can only click on the "Browse" button. In old FF, you can only click on "Choose a file...". It's odd.

There are also some styling problems that I ran into, when trying to make the span look like a button. It needs to be a span because other browsers have problems if it's an a.

If you want to try and get this working in all browsers, this is our best shot at having an input component that's more styleable.

I would note, too, that the wtfforms.com version doesn't work in old FF either.

To develop this:

1. script/bootstrap
2. script/server,
3. open http://localhost:9393/users/new, click "Submit"
4. Use http://localhost:9393/users/1/edit as your debugging page.

If you make changes to component.rb, you'll need to restart the server.

[dobthound]

Line is too long. [84/80]
Avoid using {...} for multi-line blocks.