Re-instate dynamic story package

Seems this got lost in @robertberry recent refactor of doom!

### before
![google chrome](https://cloud.githubusercontent.com/assets/80089/4863954/860eb362-6118-11e4-89ac-e361498322ab.png)


### after
![google chrome](https://cloud.githubusercontent.com/assets/80089/4863958/89bd6fc6-6118-11e4-83fe-61d987dfecbb.png)