Plate 1.2.0 CSS Grid.

This version of Plate includes full CSS Grid support while leaving in extraneous divs previously used to contain floats to maintain backwards compatibility. If you need to use the old style grid found in v1.1.8 and earlier, you should not pull these changes in to your current project.

Plate, like Bones is not intended to be updated from the repo for existing projects, but rather to be used as a starting point and modified for each new project. With that in mind, this and future updates may break things in your current project so think of each time you start with Plate as a starting moment in time.

Back to v1.2.0: the time to use CSS Grid is now! We've got a ton of info and links in the _cssgrid.scss file to get you started so definitely check those out. We've left in some colors around the main content sections so you can see what is going on but remove those once you've gotten the gist of the grid or have worked out your own.

Suggestions and pull requests welcome. Let's start gridding!

Thanks to the contributors, Rachel Andrew, Jen Simmons, Morten Rand-Hendriksen and countless others who put up CSS Grid demos.