[WIP] Anchored titles.

Hello!

It will be nice to get content titles linkable via anchors. I prepared a small demo. Can anyone confirm this is good idea? I would like to finish it after.

![screenshot-localhost 4567 2014-12-26 09-23-03](https://cloud.githubusercontent.com/assets/193936/5556568/d511c2da-8ce0-11e4-90fc-722e6f5827ff.png)

:christmas_tree: