Implemented paging on table sorter

![image](https://cloud.githubusercontent.com/assets/4157103/5329660/4821a44c-7d88-11e4-8b98-5556fd1ceeeb.png)


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Since we have https://github.com/my-koop/module.core/blob/final/styles/index.less#L17 you could do `.pointer;` here instead.