An issue with connect method

Ie looks like:

```
def connect(hostname, proto="http", username=None, password=None):
    return ChronosClient(hostname, proto="http", username=None, password=None)
```

but should be

```
def connect(hostname, proto="http", username=None, password=None):
    return ChronosClient(hostname, proto=proto, username=username, password=password)
```
