imageIcon ContentMode = AspectFill .
PullToRefreshThreshold Change.
Category Name Change
change PullToRefreshThreshold
change PodSpec
Update README.md
add state UZYSPullToRefreshStateCanFinish to fix trigger multiple times when pull quickly and action quickly
remove NSLog statement
Merge pull request #8 from ivoryxiong/master

add state UZYSPullToRefreshStateCanFinish to fix trigger multiple times when pull quickly and action quickly
code clean up
change pod spec
Merge pull request #1 from uzysjung/master

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