Added LFE desktop backgrounds.
Added the Counter Tutorial.

Fixes #6

Added an LFE version of the counter tutorial from the blog post linked
in the issue description.

I tried to add some more interesting elements towards the end with
returning closures to avoid bouncing variables around etc. Not really my
forte but thought it would be fun to try.
Revamping the Quick Start.
More tweaks.
Added plaid.
More tweaks.
Pulled a bunch of content out of the first page to make it easier to digest.
Tweaked the image and made it smaller.
More cropping.
Trying to wrap image...
Minor tweaks.
Revamp of 2nd page.
Tweaks and changes.
Starting to reorg quickstart.
Added new images.
More changes.
Updated "Next Stop" sections ...
More updates and links.
Switched the image to the other side.
Typo.