by qianjun;fix ie opacity bug, in ie 8 works not good
by qianjun;add countDown in progressbar,change skin
Merge branch 'master' of https://github.com/RubyLouvre/avalon.oniui.git
by qianjun;add scrollbar
Merge branch 'master' of https://github.com/RubyLouvre/avalon.oniui.git
by qianjun;add scrollbar somebugs left
Merge pull request #72 from gogoyqj/master

添加scrollbar