os-quota-sets URI has the project id twice. (v3_collaboration)

The generated URI for "os-quota-sets" in **v3_collaboration** brnach is having the project id twice:

```
http://<host>:<port>/v2/<project id>/os-quota-sets/<project id>
```

**icehouse** and **kilo** are ignoring the second project id but I am not sure if it is the same for other releases. 

to reproduce:

``` java
os.compute().quotaSets().updateForTenant(<project id>, <quota set>)
```
