Renamed the CSS styles within the logo.svg to be more descriptive, i.e. .style0 becomes .blue.
Updated the logo.svg to have :hover styles for the colors.
Removed logo.svg from the assets/img/ directory and made it an _include/
Removed the SVG background and :hover opacity from the .logo class.
Most recent site compile with changes to the SVG logo.
Removed the PNG fallback for the balloon logo and implemented Modernizr to display: none when there isn't inline SVG support.