Fronts tool fixes/features

* Edit up to six trailblocks
* Better layout for a narrow window
* Search by article id
* Search refresh button & status
* Clipboard empty button
![fronts-admin](https://f.cloud.github.com/assets/1147913/932762/f3dc129c-0046-11e3-9aa7-d1fc6c43d7a2.png)