Update jQuery DFP to 1.1.x, fix issue with white gap on pages with wallp...

- Updates jQuery DFP to 1.1.x
- Fixes issue with white gap above content row when there's background ads

![screen shot 2014-09-25 at 15 14 41](https://cloud.githubusercontent.com/assets/271645/4405811/5dd390dc-44be-11e4-92b6-0cf3b402dffe.png)