Fixed #4731: cc.CardinalSplineAt function renamed to cc.cardinalSplineAt
Fixed #4731: Renamed cc.CardinalSplineAt in CCDrawNode
Refactor #4722: Uppercase functions to lowercase
Merge branch 'develop-3.0' of git://github.com/cocos2d/cocos2d-html5 into develop-3.0

Conflicts:
	cocos2d/core/CCDrawingPrimitives.js
	cocos2d/core/platform/CCMacro.js
Refactor #4722: Apply all Uppercase functions to lowercase in CCMacro
Merge branch 'develop-3.0' of git://github.com/cocos2d/cocos2d-html5 into develop-3.0
Fixed #4720: Fix a small bug for cc.randomMinus1To1
Merge pull request #1750 from pandamicro/develop-3.0

Fixed #4722: Rename all Uppercase functions to lowercase in CCMacro