Request details page to be consistent with request list

Before: 
![cf-before](https://cloud.githubusercontent.com/assets/6648365/3779567/87982808-1983-11e4-9d4f-16857fb7759a.jpg)

After:
![cf-after](https://cloud.githubusercontent.com/assets/6648365/3779572/8ddca590-1983-11e4-9ea6-51ab8f93c507.jpg)

For the request details page to be consistent with page listing all
request, this adds the following items:
* Request ID
* Status
* Approval State

and renames the following items:
* Status -> Request State
* Requested by -> Requester

https://bugzilla.redhat.com/show_bug.cgi?id=1062382