Make all requests protocol relative by using only // instead of http://

See [Paul Irish's blog post](http://www.paulirish.com/2010/the-protocol-relative-url/) for details

Additionally, if you put the [raw url](//raw.github.com/itsthatguy/gridwax/master/gridwax.js) code of this script into your bookmarklet rather than the script hosted on github pages people will be able to use your script on SSL protected pages too (after you merged of course).