Web viewer rotates and distorts photo

Reported by Mia. The image is distorted only in the web viewer.

http://stori-app.com/slides/107802079951160613794/C99766C8-500D-4BA5-A172-C22E6DB6B927
![image](https://cloud.githubusercontent.com/assets/1823198/3150625/09cdc656-ea78-11e3-8cad-c7cc85dba31e.jpeg)
![image 1](https://cloud.githubusercontent.com/assets/1823198/3150632/30d169e2-ea78-11e3-8976-b582aee12645.jpeg)
