Merge pull request #43 from liamcindy/v2x

refresh textfield size
Merge pull request #44 from liamcindy/v2x

modify for ui data read
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Merge pull request #45 from chengstory/#4864

modify UI bug.
add interface function for uidragpanel
Merge branch 'v2x' of git://github.com/chukong/cocos2d-x into v2x