Fixed message after resolving a subdossier

When resolving a subdossier, the displayed statusmessage was wrong. This PR fixes that.

before:
![bildschirmfoto 2013-11-27 um 17 05 49](https://f.cloud.github.com/assets/485755/1632817/fc8fd872-577d-11e3-8541-81c085c3eef1.png)

after:
![bildschirmfoto 2013-11-27 um 17 06 12](https://f.cloud.github.com/assets/485755/1632807/e47a4eca-577d-11e3-80c2-bf2f4eb9a3a4.png)

@lukasgraf please take a look.