Author: Petr Skoda
MDL-30958 do not use Yahoo CDN on https sites
Browsers do not like mixing of ssl and non-use content on one page. Unfortunately YAHOO does not provide the files over SSL yet - see http://yuilibrary.com/yui/docs/tutorials/faq/#does-yahoos-cdn-support-ssl
http://git.moodle.org/gw?p=moodle.git;a=commit;h=47932f4967f490265dc3fa67c30c74d141cf7c97
http://github.com/moodle/moodle/commit/47932f4967f490265dc3fa67c30c74d141cf7c97
+ 2.3 en [configuseexternalyui,core_admin]