Fixing Default Shortcode Attribute

It looks like you're [trying to set a default shortcode attribute value](http://codex.wordpress.org/Function_Reference/shortcode_atts) for the icon but then you don't use the default that you created.

Here's what the CMS looks like before the update:
![Screen Shot 2013-04-10 at 11 44 06 AM](https://f.cloud.github.com/assets/1065372/363257/581b0d3c-a1fe-11e2-8b5c-6967aa8eeb14.png)

Here's the output:
![Screen Shot 2013-04-10 at 11 44 30 AM](https://f.cloud.github.com/assets/1065372/363258/5e021894-a1fe-11e2-971f-31f5afd79801.png)

And after the fix everything is good. :)
![Screen Shot 2013-04-10 at 11 45 16 AM](https://f.cloud.github.com/assets/1065372/363261/670f44fc-a1fe-11e2-9241-af9eb350c217.png)