Added scss and sass partials
Merge branch 'sass' of git://github.com/nathancrank/retinajs into nathancrank-sass
only select images with data-retina=true
Merge branch 'master' into sass
Added SASS documentation
Merge branch 'sass' of git://github.com/nathancrank/retinajs into nathancrank-sass
Add tests for scss mixin
Fix interpolation in scss partial to render properly with libsass
Merge branch 'sass' of git://github.com/nathancrank/retinajs