Fix football match nav selected state

This fixes #1875 

The ajaxed football match day navigation no longer highlights the current active tab. This is because the component uses an unsupported url parameter ```currentPage``` to determine which to highlight. We strip out query strings not in our whitelist at the CDN level and thus was not reaching the controller.

This was annoying me so I went with the simple solution and renamed the query string to ```page``` which is in our whitelist and therefore doesn't add extra complexity and polution of our URLs.

#### Before
![Before](https://f.cloud.github.com/assets/80089/1277602/b48471d4-2ed1-11e3-9615-d25b0d7ea9e1.png)


#### After
![After](https://f.cloud.github.com/assets/80089/1277603/bb197e2c-2ed1-11e3-92a3-7873c45ecd9e.png)