Full width images

-added css to create full width images
-removed leftover js files from casper
-added spar.js as main spar js file
-added code to spar.js to add .image-only to images output by markdown
fixed spar.min.js location
added comments to less
code blocks and inline code

-inline code uses source code pro font
-code blocks are dark and edge to edge and scroll when needed
version 0.2

-full width images
-code blocks styling
-inline code styling
-added a spar.js as main spar js file