Scraper: Duplicate events?

![screen shot 2014-04-17 at 12 09 19](https://cloud.githubusercontent.com/assets/360800/2730393/5fce5dec-c618-11e3-989f-f51f198f98d3.png)
![screen shot 2014-04-17 at 12 09 13](https://cloud.githubusercontent.com/assets/360800/2730394/5fd08126-c618-11e3-9a15-35398374023e.png)

@NicolasSchmutz fyi