CCUserDefault.cpp: Should not compile on Mac platform (should be using CCUserDefault.mm implementation).
Merge pull request #6937 from wefiends/Mac-UserDefault

CCUserDefault.cpp: Should not compile on Mac platform
fix memory leak
fix coding style
Merge pull request #6942 from minggo/memory-leak-sprite-frame-cache

Memory leak sprite frame cache
[ci skip]
Update the reference of submodule cocos2d-console.