Fixed points bubble on content wrapper #2627

Made the points bubble to only show when there are points, which also
only shows when users are logged in.  Also made some minor cosmetic changes to the points bubble and download button.

Logged in:
![logged in](https://cloud.githubusercontent.com/assets/2066060/4960792/238833e4-66c7-11e4-9d46-47adfbcc77cd.png)

Not logged in:
![not logged in](https://cloud.githubusercontent.com/assets/2066060/4960796/28974c3a-66c7-11e4-8a82-46ce587a064d.png)