Facia tool: editable headlines

Still needs weaving into Facia. 

![fronts-tool](https://f.cloud.github.com/assets/1147913/1422730/4683675a-3fff-11e3-9763-e244b546ff2d.png)

Results in a collection entry like this:

```
{
    "id" : "world/2013/oct/28/david-cameron-nsa-threat-newspapers-guardian-snowden",
    "meta" : {
      "group" : "1",
      "webTitle" : "UK Prime Minister makes veiled threat over NSA leaks"
    }
}
```