Autoprefixes and compresses CSS.

Autoprefixes to support the last three versions of major browsers and removes whitespace from the file.
Ignores Grunt files and other suggestions

Suggestions provided by Grunt. Seems legit.
Sets up Grunt taskrunner

Includes Autoprefixer, Sass, and Uglify
Minifies JS
Autoprefixes and compresses
Removes the preserve comment flag from headers

Allows the CSS to be compressed further. Also adds a note to styles.scss to indicate where to find the uncompressed source code.
Fixes a flexbox layout bug in IE 10.

It was causing .media-body to overflow the container.
Ignores libs.

Libs are unlikely to be edited for this project.