Cleared up some out-of-date information.
Updated SCSS code guidelines.
Less padding on bottom of footer.
Including HTML5Shiv for IE8.
Cross-browser flexbox for footer.
Merge pull request #149 from DoSomething/safari-flexbox

Cross-browser flexbox sticky footer
Added left-arrow and updated new success & fail icons.
New success and fail icons for banners.
Merge pull request #150 from DoSomething/new-icons

New icons
Release v3.0.10