Use existing styles for table in tasktemplate view.

@phgross 

## from
![bildschirmfoto 2014-07-09 um 09 27 19](https://cloud.githubusercontent.com/assets/157533/3521047/7e224250-073a-11e4-8846-97a337161836.png)

## to
![bildschirmfoto 2014-07-09 um 09 27 09](https://cloud.githubusercontent.com/assets/157533/3521046/7e1e0cf8-073a-11e4-8e22-8f178cb99388.png)