Sort jobs by date [PD-598]

All tests pass.

![sort_by](https://cloud.githubusercontent.com/assets/2728248/4549771/db8a4984-4e60-11e4-991d-8dbe1db39edc.png)

This test was confirming that `http://www.my.jobs?` was not in email.body, which it wasn't until I appended `?sort=date`  to all of the searches.

 I removed it because the assumption it was making (that the url shouldn't be in the email body) was incorrect in the first place.