CycleDash HTML: Add deployed git hash to navbar

fixes issue #112

![](http://cl.ly/image/3a311T2G132W/Screen%20Shot%202014-10-21%20at%204.56.05%20PM.png)
CycleDash HTML: Move deployed hash to HTML comment
Merge pull request #133 from hammerlab/issue-112-add-git-hash-to-html

CycleDash HTML: Add deployed git hash to navbar