Adds html decoding to clientside mktplace entries

We obviously protect ourselves from user input.  We escape our output to the page (part of XSS prevention).  This commit will render it back to user-readable content.

After:
![image](https://cloud.githubusercontent.com/assets/5521429/3416938/816be210-fe32-11e3-9519-9608b724a46d.png)


Before:
![image](https://cloud.githubusercontent.com/assets/5521429/3416943/9b946284-fe32-11e3-9dd8-719c474bff7e.png)