Please add a function about pull up to refresh

[Ryan-Lee]

just like title. i want a EGOTableViewPullRefresh within pull up from bottom of TableView to refresh. i very look forward to it come true. thank you!

[LiLejia]

just DIY~

http://stackoverflow.com/questions/7684441/iphone-projects-needs-pull-up-to-refresh-feature

[fairzy]

https://github.com/fairzy/FFPullToLoadMore
try mine