Remove duplicates of league names on Matches component

Removal of duplicate league names in component.
Fixes #4102 

![toomanyleaguenames](https://cloud.githubusercontent.com/assets/31692/2996843/827e21ec-dcf7-11e3-82b4-373513b3e02b.png)
![toomanyleaguenames](https://cloud.githubusercontent.com/assets/31692/2996844/828d7d0e-dcf7-11e3-9abd-4be3a221f799.png)