Fix a memory leak in Set::removeAllObjects.
The set maintains a strong reference to all objects so release() should be called whenever something is removed from the set.
issue #2768:Add Armature lua binding and releated test samples
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Armature

Conflicts:
	extensions/cocos-ext.h
issue #2768:Add a newline
issue #2768:Modify testlua and hellolua sample's linux mayflies.
particle designer2.0 support
Merge pull request #3732 from dumganhar/develop

[Win32] Updating the window size of JS-Games to 480x720.
Minor spelling changes description of CCScene.h
Merge pull request #3736 from elwinarens/desc_scene_spelling

Minor spelling changes in description of CCScene.h[ci skip]
Update AUTHORS [ci skip]
retan ActionNode _actionSpawn while create
add judgment for retaining _actionSpawn
Fixed compiling-warnings (MSVC2012): C4996(* was declared deprecated), C4305 (* truncation from 'double' to 'float'), C4018 (* signed/unsigned mismatch), C4800(* forcing value to bool 'true' or 'false').
Clean up some API documentation
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop
modify particleSystem format erro
fixed action node crash
change to use CC_SAFE_RELEASE_NULL and CC_SAFE_RETAIN
Merge pull request #3755 from liamcindy/develop_action

[ci skip]change to use CC_SAFE_RELEASE_NULL and CC_SAFE_RETAIN
revising indent Erro