Fix for project links in search index and filter links for issues

Hello!

- Links for projects in search index are fixed
- Filters for issues like Open or Closed in the overview are now working

![image](https://f.cloud.github.com/assets/1861585/1479883/248eaaf8-4692-11e3-9624-afeb615beade.png)

![image](https://f.cloud.github.com/assets/1861585/1479884/3b40371c-4692-11e3-93fa-ac441dea9e5a.png)