Routing fix Commit-List: switch to branch with # in name

This fixes issue #4105.

Now the branch name can contain a `#` at any position.

![bildschirmfoto von 2013-06-09 15 36 20](https://f.cloud.github.com/assets/327488/628906/eb6877a2-d109-11e2-98a9-910eb1d6bfc5.png)

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Should any other special chars be allowed in the branch name?