restyling examples

![handlebars-binding](https://f.cloud.github.com/assets/1131196/1030596/be8a78c6-0ebb-11e3-8dbe-9a71c46dbb20.png)
![mailbox](https://f.cloud.github.com/assets/1131196/1030597/c2f7a5dc-0ebb-11e3-8d3c-7889ff596ea9.png)