Modify positional and keyword arguments to fix a multiple keyword argume...

While using web.py and trying to disassociate accounts, I kept running into an error:

```python
 File "../../social/apps/webpy_app/utils.py", line 37, in wrapper
    redirect_uri=uri, *args, **kwargs)
  File "../../social/apps/webpy_app/utils.py", line 26, in load_strategy
    return get_strategy(backends, strategy, storage, *args, **kwargs)
TypeError: get_strategy() got multiple values for keyword argument 'request'
````

This pull request fixed the problem, and passes all nosetests as well.