Nicer look for long blog post tile links

One line titles look exactly the same as they looked before.
![one-line-title](https://cloud.githubusercontent.com/assets/7405/3007166/7370079e-de71-11e3-80af-b3d1a31fbe53.png)

Multiline titles looked a bit broken. Here's a comparison between the old and new style.
![big-title](https://cloud.githubusercontent.com/assets/7405/3007168/98249636-de71-11e3-81aa-cc06401f4826.gif)