pull to refresh
Merge branch 'dev' into pull-to-refresh
update slider
无限滚动
Merge branch 'pull-to-refresh' into infinite-scroll
Merge pull request #8 from sdc-alibaba/pull-to-refresh

Pull to refresh
Merge pull request #9 from sdc-alibaba/infinite-scroll

Infinite scroll无限滚动
update grunt: ignore layout file
Merge remote-tracking branch 'origin/dev' into dev
update header