148-add-links-to-shooters-names

Added links to shooters' names and removed "show" button.
Added tests for shooter model (https://trello.com/c/oBk74Nd4) and index view

![zrzut ekranu z 2014-05-12 19 24 21](https://cloud.githubusercontent.com/assets/6718923/2947843/139423ca-d9fb-11e3-8c2b-f0057414070b.png)