Switching from ! to ()

The `!function () {}();` format is not compatible with Firefox. I've switched to `(function () {}());`. 

(If a `javascript:!function…` bookmarklet is executed in Firefox, its code is loaded and executed inside the address bar, which in turn kills the current page.)

Note: This could be Windows-specific. Test here: http://jsfiddle.net/tot41ndo/ (drag into Bookmarks bar to test)