Small fixes to commercial components.

* Removes SVGs used by old jobs and DFP components
* Adds default white background colour to job logos

Before:
![screen shot 2014-11-07 at 12 28 52](https://cloud.githubusercontent.com/assets/813383/4953317/4832ec2c-667f-11e4-94f7-9d949a6834cc.png)

After:
![screen shot 2014-11-07 at 12 29 11](https://cloud.githubusercontent.com/assets/813383/4953321/501d15ac-667f-11e4-802e-942ed594c975.png)