Update README.md
ENH: added --info argument to print info on the current token:

For example:
```bash
binstar -t $TOKEN auth --info
Name: my-token
Id: 5301459e7d150a5af963XXXX
```

This is a part of the solution for issue #Binstar/binstar.org#15
ENH: added --quiet option
ENH: added --no-progress option
Merge branch 'master' into feature/build

Conflicts:
	binstar_client/commands/upload.py