Update heuristic not to punish longer titles

Before:
![screenshot 2014-05-14 13 40 51](https://cloud.githubusercontent.com/assets/1413267/2970580/6ec73ada-db5d-11e3-85ad-00a5e5532231.png)
After:
![screenshot 2014-05-14 13 41 01](https://cloud.githubusercontent.com/assets/1413267/2970581/6ec7c73e-db5d-11e3-815c-cca3c53a02c7.png)