Add in sass, restructure, ignore .sass-cache, move third-party css to vendor folder
Restructure page content and footer layout for consistency/bottom footer
Add button scss module, refactor styling, start adding default styling from designs
Merge pull request #280 from azavea/topic/sass-n-clean

Add Sass and Cleanup Styling
Merge branch 'master' of github.com:azavea/OTM2