fix get_num_of_cpu on win32.
fix get_num_of_cpu on win32.
Merge pull request #5218 from Dhilan007/develop_crash

fix get_num_of_cpu on win32.
fix link error on vs.
Merge pull request #5221 from Dhilan007/develop_vs

fix link error on vs.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into developBug