Merge pull request #1 from vernonwang/master

fixed some error on ios
Merge pull request #2 from vernonwang/master

release talkingdata cocos2dx 2.1.0 version.but not support coco2dx-3.0beta very much
Merge pull request #3 from vernonwang/master

fix an bug that send data not statable
Merge pull request #4 from vernonwang/master

游戏版本的营销策略+cocos3.0使用的Demo
replace android sdk and ios sdk
replace release note
merge from talkingdata master