HRSPLT-177 Updates text at bottom of Personal Info

Split the `bottom message` in the message bundle into two parts.

Also adds in styling to that second part.

Before:
![image](https://cloud.githubusercontent.com/assets/5521429/4544988/82a4417c-4e37-11e4-8be9-0b70be17676b.png)

After:
![image](https://cloud.githubusercontent.com/assets/5521429/4544998/a6a80b62-4e37-11e4-916a-9455e54574b6.png)

I might have implemented this as a class on the containing `<p>` since the bold-ness feels more a matter of presentation style than of semantic content (there's nothing at all strong about that invitation to contact the payroll office! :) ), but this is implementation is straightforward and future editing of the CSS incurs the same future release-cutting that future editing of this JSP will require.