Adds required fonts
Adds mixin for font-face
Adds declarations for roboto font
Sets roboto as default font
Adds gray variable and sets right value to light-gray
Adjusts styles for nav bar
Updates to html structure and removes uneeded file
Adjust margin and padding for branding section
Style adjusments for branding section
Adds logo files
Adds styles for logo section
Adds download links functionallity
Adds modernizr