updated app to no longer host artifacts, but instead have links to them, hosted elsewhere
updated copyright date to include 2013
updated sidebar with content and changed about/contact links
added /edit route to update existing data
added google analytics script and removed non-existent js imports
added favicon
updated google analytics account id and removed non-existent JS reference
updated favicon to be appscale instead of app engine
added size field, so that users will know how big the file they are about to download is
turned on warmup requests, and updated sidebar