Add More Keywords to Section Fronts

This makes non-facia section fronts consistent with facia pages, so that ads work.
Eg global-development-professionals-network/malaria-consortium-partner-zone
![image](https://cloud.githubusercontent.com/assets/1722550/4717421/d4411b9e-5914-11e4-93c8-ac4160104e55.png)


Yes that looks much better.  Thanks.