Add two margins.

@skinny97214 had me add these margins yesterday. Submitting a PR today.

* Add a top margin to "Add another address" and "this is not me" for non-english speakers when the buttons spread across two lines.
* Add a top margin to all email, text, and password fields.

fixes #3250

The fix looks like:

![Screen Shot 2013-04-16 at 21 30 05](https://f.cloud.github.com/assets/848085/388226/967c39b8-a6d4-11e2-8b75-09dc6a7109e7.png)