Merge pull request #2400 from pandamicro/develop

[3.1 release] Add change log
Fixed a bug of cc.Sprite that its flipped function is incorrect in Canvas
Merge pull request #2401 from dingpinglv/develop

Fixed a bug of cc.Sprite that its flipped function is incorrect in Canvas
Feature #5995  change login default permission
Merge pull request #2403 from wuzhiming/developing

Feature #5995  change login default permission
Correct a mistake of cc.Sprite that its rendering is incorrect without texture
Merge pull request #2407 from dingpinglv/SpriteWithoutTexture

Correct a mistake of cc.Sprite that its rendering is incorrect without texture
Fixed #2408: Fixed a bug of cc.ClippineNode
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into SpriteWithoutTexture
Merge pull request #2409 from dingpinglv/Iss2408_ClippingNode

Fixed #2408: Fixed a bug of cc.ClippineNode
Closed #2401: Read out the textfield for the first time
Merge pull request #2411 from VisualSJ/develop-fix

Closed #2401: Read out the textfield for the first time
Add getSprite() method for compatible with cocos2d-x

Cocos2d-x's CCScale9Sprite is have getSprite() method for getting
scale9Image field but cocos2d-html5 is not. Need to be fixed for
compatibility.
Merge pull request #2412 from IgorMats/develop

Add getSprite() method for compatible with cocos2d-x
Closed #2413: NO_BORDER is error
Add getSprite() method for compatible with cocos2d-x
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into SpriteWithoutTexture
Merge pull request #2414 from VisualSJ/develop-EGLView

Closed #2413: NO_BORDER is error
Merge pull request #2415 from dingpinglv/SpriteWithoutTexture

Add getSprite() method for compatible with cocos2d-x
remove create