update jquery each
Merge remote-tracking branch 'origin/master'

Conflicts:
	jquery_snippet/js/jquery_goodparts.js
update snippet
delete some methods in core.js
change clearfix
up index
up runner.htm
add comments on yetii
update jquery good_parts
Merge remote-tracking branch 'origin/master'

Conflicts:
	jquery_snippet/js/jquery_goodparts.js
	js_core/Runner.html