License Descriptions button is gone from the Upload page and instead the...

... descriptions are displayed when clicking on the question mark icon. Descriptions are still displayed in a Modal window since there is too much text to display them as a tooltip.

![license_button_gone](https://cloud.githubusercontent.com/assets/568286/3598988/f667cf32-0ce9-11e4-8d7b-76f8bf30a618.png)

Should this be testing `#help_icon` or `#help_icon_modal`?