closed #3874: expand textureID bit to 32bits
issue #4116: Delete non-scripting files.
issue #4116: Removes script-bindings codes.
issue #4116: Updates jenkins scripts.
issue #4116: Updates iOS / Mac projects.
closed #3874: fix bug, blendID should be shifted by 50 bits
Merge pull request #5472 from dabingnn/develop_glTextureLinuxAndroid

closed #3874: expand textureID bit to 32bits
Update CHANGELOG [ci skip]
Merge pull request #5476 from dumganhar/iss4116-split

closed #4116: Remove script-bindings codes, move it to 'cocos2d/cocos2d-js' and 'cocos2d/cocos2d-lua' repo.