Close GH-27: allow .css files to be compiled using --scss flag, with tests. Fixes #21
0.3.0
Close GH-29: Quick docs update; added description of Sass to match grunt-contrib-compass.
Update deps
Fix docs on `compass` option having wrong type

Fixes #28
Use `dargs`

https://github.com/sindresorhus/dargs
Use the exclude argument in Dargs
Merge branch 'master' of https://github.com/gruntjs/grunt-contrib-sass
fixed --debug-info
fixed issue when its impossible to concatenate scss and sass
both covered with tests