DFP integration

For those who don't know, DFP is the new ad server that is going to be used in the future (replacing OAS). This is the first pass at integrating it into next-gen.

The first things to be served from DFP on next-gen will be the advertised/sponsered content badge and the commercial components. Both of these are going through the final stages with design, so they will be getting tweaked soon. Expect the placements of both to move soon.

// @kelvin-chappell @phamann @ironsidevsquincy