tanslate three on 5.20
tanslate three on 5.20-V2
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Merge branch 'v3' of github.com:gonjay/cocos2d-x into v3
Merge github.com:iTyran/cocos2d-x into v3
Merge pull request #44 from chrishine/v3

translate comments of "atitc.h", "ccConfig.h" and "base64.h"
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Merge pull request #47 from gonjay/v3

Translate of Network
translate into Chinese on 5.21
Merge pull request #52 from chrishine/v3

modify according to the review