SASS cache.
Added custom install to Ruby path.
Generated CSS files.
Added bottom margin to forms.
Put 4 column layouts into comments - not needed.
Added TODO.
Added indicator to links for users with keyboard.
Put social site colors into variables.
Indicator for keyboard users.
Removed border from last group.
Removed the indicator border.
Included responsive.scss.
Added TODOs, corrected typos, changed order.
Responsive rules.