close #3765:Simplify label.Remove FontAtlasFactory,FontDefinition and TextImage.
get number of cpu, using multiple concurrent job processes;
issue #2789: Adds Map, Dictionary perf test, not yet finished.
Removes unused cast in CCTMXTiledMap.cpp.
issue #2789: Improves performance for Map<K,V>::keys.
issue #2789: Adds performance test for Map<K, V> and Dictionary.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
update xcode project.
Merge pull request #5127 from dumganhar/iss2789-perf-container

issue #2789: Adds performance test for Map<K, V> and Dictionary.
fix compiling error cause by include a non-existent file.
fix compiling error cause by miss include header file.
Merge pull request #5126 from liang8305/use_multiple_build_process

get number of cpu, using multiple concurrent job processes;
closed #2789: Adds a macro ‘’USE_STD_UNORDERED_MAP” for switching the implementation of Map<K, V> between using std::unordered_map and std::map.
Merge pull request #5128 from dumganhar/iss2789-perf-container

closed #2789: Adds a macro ‘’USE_STD_UNORDERED_MAP” for switching the implementation of Map<K, V> between using std::unordered_map and std::map.
Update CHANGELOG [ci skip]
A typo fix in EventDispatcher, DirtyFlag::FIXED_PRITORY —> DirtyFlag::FIXED_PRIORITY.
Merge pull request #5130 from dumganhar/develop

A typo fix in EventDispatcher, DirtyFlag::FIXED_PRITORY —> DirtyFlag::FIXED_PRIORITY.
Warning fixes: 1) getZOrder —> getLocalZOrder. 2) long —> int
issue #3713: remove Object::_autoReleaseCount
#include “cocos2d.h” was FORBIDDEN in cocos modules. Reduces the dependence  when header file changes.