SLF4JHandler.__init__ doesn't use super

```
class SLF4JHandler(logging.Handler):

    def __init__(self, logger=None):
        logging.Handler.__init__(self)
```

Technically, shouldn't this be `super(SLF4JHandler, self).__init__()` ? I am not an expert on the Python class mechanisms so I'm not sure about the subtleties of the difference.


