Display 'Sprint' before version number

@peterflynn Just a quick fix to display "Sprint" before the version number as it was before the download.brackets.io server issue today (adobe/brackets#7239), as shown in the screenshots.

Before issues (image from Google Cache):

![screenshot 90](https://f.cloud.github.com/assets/3382464/2454275/44598d12-aee8-11e3-9bcb-7bc56652424b.png)

Live site:

![screenshot 93](https://f.cloud.github.com/assets/3382464/2454269/3992edc4-aee8-11e3-8b64-bd6cc2f5b297.png)