Header icon template changed to avoid overlap. Fixes #243

Used to be this: 
![screen shot 2013-09-19 at 1 11 10 pm](https://f.cloud.github.com/assets/4405800/1174867/51f03a06-214f-11e3-9c2c-15a3d0667351.png)

Now handled like this:
![screen shot 2013-09-19 at 1 17 25 pm](https://f.cloud.github.com/assets/4405800/1174875/653dbcf0-214f-11e3-904f-84e81af1825e.png)