Add relevant options to page form partial.

About Page:
  - Publish
Feature Page:
  - Publish
  - Show sidebar
Home Page:
  - Show title

Fixes #401 

#### About Page
---
![about page options](https://f.cloud.github.com/assets/96776/2364040/87782320-a65e-11e3-951b-10580525ceff.png)

#### Feature Page
---
![feature page options](https://f.cloud.github.com/assets/96776/2364043/9049a3b6-a65e-11e3-948f-a294178e1c1e.png)

#### Home Page
---
![home page options](https://f.cloud.github.com/assets/96776/2364045/99a6b62e-a65e-11e3-861a-46ee62afd6f0.png)