IA Pages - layout fixes for empty fields

Still WIP, need to modify also the templates for the edit mode to easily allow a user with permissions to add the missing informations.
![screen shot 2014-11-05 at 16 50 04](https://cloud.githubusercontent.com/assets/3652195/5031264/0aa8f41a-6b56-11e4-8cae-ca50c43346bb.png)