Enabled pagination and added very simple paginator to the index page to avoid confusion of too many posts.

I've been recently testing and experimenting with this awesome theme and I've realised that it could be very difficult for user to locate his or her desired blog post from the main page if there were too many posts.

So I've decided to solve this problem. After thinking about it for a while, I came up with this solution:

![hikari-pagination](https://cloud.githubusercontent.com/assets/7317552/3357103/a8f165f4-facb-11e3-9402-f9c83e3a41f4.png)