Adding image.scss to include 2x and sprite mixins
Adding basic grid system - implementation and docs need to be written
Adding class mixin - for handling more modular class names
re-ordring luigi (alphabetical) and adding grid and image
Removing enable-rem var as it added a 62.5% to body, which was the wrong ratio for rem
Cannot add a mixin inside an if - so removed the if around the sprite mixin
Changing grid example at the top of mixins/_grid.scss
Re-ording modular.scss to be alphabetical
Adding docs to readme ofr image and grid system
Adding background-image mixin in /mixins/_images and update the readme file
Adding the value to sprite-size var in readme.md
Updating image-2x mixin description in readme.md
Updating the changelog for the new version 1.2.0