Sync with 3.1.3 tag from SVN

No actual code changes, just all whitespace and line endings
Version 3.1.6

* Kill off v2 copy-to-clipboard SWF file due to XSS security issue with
the file. If you want to be able to copy/paste, use the better v3.
* Switch from using a `<meta>` tag to a `<style>` tag as the JavaScript
anchor in the `<head>`. This should fix the validation error under
HTML5.
* Remove an old forced font-size function -- it wasn't actually used.
* Remove references.
Fix XHTML validation issue

Props [NoMad1337](http://www.tacticalcode.de/).
Version 3.1.7