issue #1564: Deleted CCPhysicsSprite in jsbindings since it's supported at Extension.
issue #1564: Updated Project configurations for android and win32 since physics_nodes was moved to Extension folder.
issue #1564:update SchedulerTest
issue #1564: Deleted physics_nodes in cocos2dx since it was moved to extension.
issue #1564: Deleted duplicated declare in ScriptingCore.h
issue #1564: Deleted physics_nodes in cocos2dx since it was moved to extension.
issue #1564: Bugs fixes in CCDrawNode.cpp.
issue #1564: Return a new object instead of 'const reference' for some get methods.
Merge branch 'gles20' of https://github.com/cocos2d/cocos2d-x into iss1564-update-tests

Conflicts:
	samples/TestCpp/Classes/DrawPrimitivesTest/DrawPrimitivesTest.cpp
issue #1564:update RenderTextureTest
Merge pull request #1605 from minggo/iss1564-update-tests

update tests
Merge branch 'iss1564-update-tests' of https://github.com/dumganhar/cocos2d-x into iss1564-update-tests
issue #1564: update some test cases
Merge pull request #1606 from minggo/iss1564-update-tests

Iss1564 update tests
issue #1564:update ParticleTest
issue #1564:update ParallaxTest
issue #1564:update LayerTest
issue #1564:update LabelTest
Merge pull request #1607 from minggo/iss1564-update-tests

update tests
issue #1564: Minor fix in CCLabelBMFont::createFontChars().