First commit for new design
New footer
Font and background colors
Merge branch 'newd' of github.com:koding/kdlearn into newd
Sidebar styled
Added sidebar active styling to match new design.
Fixed header image and footer scroll
Added sidebar active class assigning

Also fixed a few bugs.

Note that the class is temporarily `zactive` and not `active` because
Stefan has a clientside script causing all other `active` classes to be
removed. I need to kill it, burn it with fire.
Merge branch 'newd' of github.com:koding/kdlearn into newd
Adjusted header to fit new design
Fixed typo
Floated sidebar to the right, to bypass the broken js crap.
Added more footer styling to match the design base.
Fixed search button and header image
Set the topnav color.
Merge branch 'newd' of github.com:koding/kdlearn into newd

Conflicts:
	.metalsmith/sass/style.scss
Added icon css and markup
Added video icon
Fixed hader image and nav / colors
Merge branch 'newd' of github.com:koding/kdlearn into newd