Trim link prefixes

#### Before:
![messy_project_links before](https://f.cloud.github.com/assets/226228/726827/e94785fc-e136-11e2-8e26-75438977c274.jpg)
#### After:
![clean_project_links after](https://f.cloud.github.com/assets/226228/726828/eabdee3a-e136-11e2-9c90-f4ee5fd4b7d6.jpg)
![project_page_github_repo after](https://f.cloud.github.com/assets/226228/726830/3c4f7b60-e137-11e2-9477-b97491bbd8a8.jpg)