Properly handles ACTION messages

![Screen Shot 2013-01-29 at 12 17 43 AM](https://f.cloud.github.com/assets/9305/105924/400663da-69d3-11e2-88fb-404826057f65.png)

This patch enables Logbot to properly handles IRC ACTION messages. It will no longer display as ACTION [message], instead, it will be presented as most IRC clients do.

```
* [NICK] [ACTION]
```

The `\u0001` character wrapped around ACTION messages are also stripped, as they're not meant to be *displayed* on the client.