Added campfire logo

All files including: svg, png, ai and .fw.png
Added a config file for compass
List icons
Added IE sass file
Tidied up the header
Changed default font sizes and measures
Copy fix
Removed hero image

At this stage I'm thinking this is not really necessary. Medium this is
not.
List bullets
Removed clearfix + added config to the components scss
Increased base font size
Tidied up the footer
Revised footer markup