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.
particle designer2.0 support
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').
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop
modify particleSystem format erro
revising indent Erro
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop
Merge pull request #3689 from yuye-liu/particle_designer_2

[ci skip]particle designer2.0 support
revising erro indent
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop
Merge pull request #3741 from signmotion/develop

Fixed some compiling-warnings (MSVC2012).[ci skip]
Update AUTHORS [ci skip]
Merge pull request #3785 from yuye-liu/particle_designer_2

Particle designer 2[ci skip]
Remove Hungarian notation.
Remove Hungarian notation in fix made for memory leak in Set::removeAllObjects().
Modify wrong codes.
Merge pull request #3812 from nutty898/develop_nutty_modify_wrong_codes

[ci skip]Modify wrong codes.
various small fixes
Adds CODING_STYLE.md and RELEASE_NOTES files

The files are also added in the Xcode project
Adds RELEASE_NOTES and CODING_SYTLE.md into Xcode
Removes unneeded log

This log is already part of `CCConfiguration`