fix numbers and bullets in list :before

Besides the problem described in #196 there was a numbering problem like:

![screen shot 2014-11-20 at 23 00 25](https://cloud.githubusercontent.com/assets/5614559/5133935/916aa29c-7109-11e4-967c-de4c7573f680.png)

This pull request fixes that and will change the looks to:

![screen shot 2014-11-20 at 22 56 16](https://cloud.githubusercontent.com/assets/5614559/5133951/a5f07264-7109-11e4-9d4b-f1a1340fe3e3.png)


fixes #196