Adding uglifyJS into the JS pipeline.

Tests aren't passing yet, so waiting until those pass and I'll rebase. 
pro-tip: you might want to configure your editor to ensure every file ends with a newline
![screen shot 2014-12-10 at 7 35 38 pm](https://cloud.githubusercontent.com/assets/79303/5387164/ba6e9096-80a3-11e4-8c4f-ba397997e76b.png)