fixing css / html bugs

Fixes small bugs in the two money components;

1. Adds accessibly hidden text for more links.

2. Removes the space between link text and graphic,
Before;
![screen shot 2014-06-06 at 12 34 15](https://cloud.githubusercontent.com/assets/1303616/3199728/94637074-ed6e-11e3-94b5-5286b36f337a.png)

After;
![screen shot 2014-06-06 at 12 34 24](https://cloud.githubusercontent.com/assets/1303616/3199729/9b3d2570-ed6e-11e3-9706-6eaef8fa4135.png)

maybe `@{mortgage.lender}'s offer`