[#83899804] Disable add journal button while adding journal

Enabled:  
![screen shot 2014-12-16 at 11 46 10 am](https://cloud.githubusercontent.com/assets/1903518/5457515/2a046c18-8519-11e4-9f53-606c69279f52.png)

Disabled:  
![screen shot 2014-12-16 at 11 46 16 am](https://cloud.githubusercontent.com/assets/1903518/5457516/2a08b9a8-8519-11e4-997f-4f3983b66ed3.png)