yui/yeti — pull request #3 by okuryu (2012-04-14 13:25:51+00:00)
Title: Fix showing version.

Please review this one. Currently, showing like following.

```
$ yeti -v
0.2.1pre
```

```
$ yeti --version
usage: /usr/local/bin/yeti [--version | -v] [--server | -s] [--port=] [--hub=] [--help]
[--] []
No files specified. To launch the Yeti server, specify --server.
```