Bug #20, Split ATTR_SECURE RegExp onto two lines - prepare for fix
Bug #20, Add missing attribute "required" to ATTR_SECURE white-list
Bug #21, Allow boolean values to be set, via element.setAttribute()
Bug #22, Silently ignore "_CONFIG_", "_STYLE_", etc. in the fixes object
Bug #23, Pull request. Re-minified the Javascript

* Compilation level: SIMPLE_OPTIMIZATIONS
* http://closure-compiler.appspot.com
Merge pull request #23 from nfreear/master

Pull: add missing attribute "required" and other fixes. Re-minified Javascript.