Zhiwei Zhao

Results 2 issues of Zhiwei Zhao

1. 调整在此种模式下,第一个block执行的QUEUE不正确的问题 2. 此种模式等待时间完成以后,被忽略的最后一个block会被执行(原来是不执行的) 3. 调整readme_cn,增加了对两种模式的说明以及新API的调用示例

viewWillAppear viewDidAppear viewWillDisappear viewDidDisappear are not called. Also, in LeveyTabBar init, you mistype "Selected" to "Seleted", #define suggested.