Merge pull request #132 from mbixby/feature/emblem-support

Close #130 Add support for Emblem.js
fixes #119

add a grunt-contrib-sass option
Merge pull request #122 from twokul/master

Support standard CSS
Edited asset docs & removed redundant comments
I am bad at VIM.
document compass gem
Fix typeof-array-check
Merge pull request #140 from fpauser/helpers_fix

Fix typeof-array-check
removed unused/confusing public/assets/app.css file
concat_css => cssmin
Merge pull request #142 from jmonster/master

concat_css => cssmin
Run compile tasks concurrently