Remove unused imports.
Merge pull request #301 from ampotty/develop

Increase the lineRate value to 1.0
Merge pull request #300 from fedora-infra/feature/remove-unused

Remove unused imports.
Docs - rename SERVICE to CATEGORY.

Since we use the name 'category' for this bit in datagrepper -- the
thing that everyone is using to call up messages -- we should be
consistent in the docs and use the same language.
Merge pull request #303 from fedora-infra/feature/doc-consistency

Docs - rename SERVICE to CATEGORY.
Simplify fedmsg-relay usage.

Currently, in order to send messages to a fedmsg-relay daemon, you have
to initialize with something like this:

```python
fedmsg.publish(topic='blah', active=True, name='relay_inbound', msg={
    'foo': 'bar',
})
```

I've been trying to simplify this over time.  This commit should make
the ``name`` kwarg redundant so you can just specify:

```python
fedmsg.publish(topic='blah', active=True, msg={
    'foo': 'bar',
})
```
Merge pull request #306 from fedora-infra/feature/simplify-relay-usage

Simplify fedmsg-relay usage.