Add page title to model create page

Model create page is missing a page title.

![missing_page_title](https://f.cloud.github.com/assets/238952/535948/7fde6368-c14e-11e2-98cb-6a1e23b4538d.png)

Added:
![with_page_title](https://f.cloud.github.com/assets/238952/535952/a4a122ee-c14e-11e2-8cf2-ddf96f720185.png)

This PR adds the model name to the template context.