adds in message to login to view and download

For restricted layers at parent institution

### Not logged in
![screen shot 2014-11-12 at 4 46 12 pm](https://cloud.githubusercontent.com/assets/1656824/5021515/7c4709d4-6a8b-11e4-821c-b9c736e83631.png)

### Logged in
![screen shot 2014-11-12 at 4 47 12 pm](https://cloud.githubusercontent.com/assets/1656824/5021532/91f34022-6a8b-11e4-8d06-b95723e8ed38.png)