* Use range-based for-loops and allocate std::vector size(), end(), cend(), rend(), crend() on the stack where favorable.
Other minor trivial changes were applied.
* Fixed Android compilation error
* Fixed windows-universal compilation error
* #improve node sort performance by std::sort + unsigned long long (_localZOrder)
* Use bit field for make _localZOrder storage more clearly.
* #Comment _localZOrder members for meaningful.
* fix issues
* #use explicit bits integer of localZOrder storage
* #Fix compile error, add include <cstdint> to CCNode.h
* use the optimization for 64bit and no optimization solution for 32bit
* Use the optimization for 64bit and no optimization solution for 32bit
* #Improve node sort performance 64-bit by std::sort + long long (_localZOrder)
* fix issues
* test case
* Revert "test case"
This reverts commit 85471d07a433f2b7f0265c3b7dd483fcc28e3e2f.
* fix issues
* use lambda, and any other sort issues.
* skip sotNodes
* fix compile error
* fix compile issue
* #improve node sort performance by std::sort + unsigned long long (_localZOrder)
* Use bit field for make _localZOrder storage more clearly.
* #Comment _localZOrder members for meaningful.
* fix issues
* #use explicit bits integer of localZOrder storage
* #Fix compile error, add include <cstdint> to CCNode.h
* use the optimization for 64bit and no optimization solution for 32bit