Can we make this dynamic by using something like ``os.listdir``?

```
>>> os.listdir('fedmsg.d')
['relay.py', 'ircbot.py', 'ssl.py', 'tweet.py', 'gateway.py', 'logging.py', 'base.py', 'endpoints.py']
```

maybe:

```python
list_fedmsgd = ['fedmsg.d/' + item for item in os.listdir('fedmsg.d')]
```

or something like that?