Implement Lists and ListTimeline feature

This is an issue #4 :octocat: 
I'd like to operate ListTimeline feature more convenient. 


Now :scream_cat:  (This patch)
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![screen shot 2014-09-13 at 4 13 51 am](https://cloud.githubusercontent.com/assets/3464295/4255056/4ba45d2c-3ab1-11e4-906a-64599452dd96.png)


Future :heart_eyes_cat:
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```bash
[nekova_] :lists
[$li] nekova_/listA
[$lj] k0kubun/listB
[$lk] nekova_/listC

[nekova_] :list $lj
```