Make invisible-character Invisible

- Invisible-character wasn’t invisible, that’s now fixed.

![before](https://f.cloud.github.com/assets/4571498/2330751/c0b82d94-a43b-11e3-95c4-f21624801d61.png)
![after](https://f.cloud.github.com/assets/4571498/2330752/c0c19c08-a43b-11e3-8b8d-638199532aea.png)