Adds imagemin and newer.

Imagemin optimizes image file sizes. Newer only executes the Grunt task if there are newer files since the last time it executed.
Improves OpenType support.

Adds ligatures, old-style numbers, and ordinals to the text. Adds lining numbers and tabular numbers for tables.
Creates a developer-centric stylesheet.

Creates a developer-centric stylesheet for easy debugging purposes.
Renames .related-nav to .transporter.

Reflects the new name of the elements in the CSS.
Adds grunt-svgstore.
Creates SVG icon test case.