WIP: Add issue labels to heading

TODO: 
1. pick better colour of text depending on issue colour returned
2. decode special characters correctly in label name

a wip on one of the TODO lines in README.md

![screen shot 2014-12-22 at 17 11 02](https://cloud.githubusercontent.com/assets/1141692/5528218/a1bc6204-89fd-11e4-9346-96d9180ca082.png)

aforementioned encoding:

![screen shot 2014-12-22 at 17 12 08](https://cloud.githubusercontent.com/assets/1141692/5528225/b0d823f4-89fd-11e4-93aa-88e80f046c75.png)