Remote Texture Loading Fix
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cocos2d/cocos2d-js#1171: Fixed cc.texutreCache's addImage logic
Merge pull request #1 from pandamicro/fix_texcache_addImage

cocos2d/cocos2d-js#1171: Fixed cc.texutreCache's addImage logic
Merge pull request #2486 from man2/develop

Remote Texture Loading Fix