Merge pull request #2517 from dumganhar/iss2105-travis

fixed #2105: Adding Travis build support for linux and NaCl.
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Merge branch 'master' of https://github.com/sunzhuoshi/cocos2d-x into iss2106-js-bytecode
Changed byte code file ext to ".jsc"

Modified loading logic to load js file first
Merge branch 'master' of https://github.com/sunzhuoshi/cocos2d-x into iss2106-js-bytecode
Removed bad comment
Merge branch 'master' of https://github.com/sunzhuoshi/cocos2d-x into iss2106-js-bytecode
Merge pull request #2483 from Weeds/fix-HttpClient

Fixed crash in HttpClient request on 64Bit
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Merge pull request #2514 from savdalion/extend-tests

Added example for russian language in TestCpp / LabelTest / BMFontUnicode
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Merge pull request #2513 from savdalion/const-methods

Added const methods for classes - purer code!
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Removed redundant code
issue #2103: Add more lua test case
Modified jsbcc to use "-p" option to turn on pipe mode
Merge pull request #2417 from sergey-shambir/disable_copy

Added CC_DISABLE_COPY macro
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Removed redundant code
Merge branch 'master' of https://github.com/sunzhuoshi/cocos2d-x into iss2106-js-bytecode