issue #3025: replace Scene call Director::getInstance() by getDirector()
issue #3025: replace call Director::getInstance() by getDirector()--------CCLayer.cpp
issue #3025: replace call Director::getInstance() by getDirector()--------CCTransition.cpp
issue #3025: replace call Director::getInstance() by getDirector()--------CCTransitionProgress.cpp CCMenu.cpp
issue #3025: replace call Director::getInstance() by getDirector()--------Node Series
issue #3025: replace call Director::getInstance() by getDirector()--------Action Series, change Node::getDirector() to public member