Working conf system

It's a drop in replacement that uses a Guido hack[1] to make everything amazeballs!

Praise/hatemail welcome.

[1] https://mail.python.org/pipermail/python-ideas/2012-May/014969.html via http://stackoverflow.com/a/7668273
What I would really **LIKE** to do here is something akin to what I did with Mason's backend parameters, which was
```py
__provider = mod.Provider(**dict(conf.items('provider')))
```

This would roughly look like this in minnow:
```py
self.store_backend_args = dict(self._config.items(provider_name))
```
And then in the ini file:
```
[sqlite]
path = data/store.db
```
Then we just have to change AsyncStorage to use keyword args (via **ing the dict) instead of list args.  But I wanted to make sure that is a "good" thing to do before I actually did it.