[#613] Add media print stylesheet

Hey, I added a simple print.css stylesheet that makes things look reasonable. It should provide a good starting point that can be expanded upon when testing how print styles turn out cross-browser, etc.

Feel free to make any suggestions, I couldnt find how js/css is being minified, for instance I noticed default.css is minified, but couldnt find anything in the Makefiles  so I left that out for now...