WIP: Improve "add job" form usability & appearance

Form is too wide and unwieldy; feels awkward to use. I'm trying splitting it into two columns, to see how/if that works. 
![suitor 2014-05-12 22-34-02](https://cloud.githubusercontent.com/assets/376315/2952908/70f482ac-da47-11e3-9df1-55a2cb7b91e8.png)