issue #2264: updated changelog
issue #2264: upated changelog
issue #2264: update samples commit ID for Node and tile auto tests.
fixed #2268: fixed director scene index of replace scene
Merge pull request #967 from dingpinglv/Iss2144_FixBugForParticleSystem

fixed #2144 fixed a bug of cc.ParticleSystem that the _totalParticles is wrong on canvas mode.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into iss2264_v2.1.4
Merge pull request #966 from linshun/iss2268_fixDirectSceneIndex

fixed #2268 fix director scene index for replace scene
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into iss2264_v2.1.4
issue #2264: updated samples commit ID
Merge pull request #968 from linshun/iss2264_v2.1.4

issue #2264: updated samples commit ID
fixed #2144 modify condition for WebGL Mode.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss2144_FixBugForParticleSystem