Update cocos2d_specifics.cpp

fix bug about scheduler, if this value is -1, it will work all right in Emulator, but run error in real device, just call one time.
issue #2771:  add tag and enable functions to physics classes
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss2771_physical
issue #2771:  refactor PhysicsTest
issue #2771:  move _physicsBody from sprite to node
issue #2771:  separate the PhysicsBody and the PhysicsShape.
issue #2771:  fix some bugs in PhysicsShape
issue #2771:  let PhysicsShape::create doesn't need to pass the PhysicsBody
issue #2771:  add PhysicsMaterial
issue 2905:SimpleAudioEngine -> audio
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss2905-adjust_folder
issue #2905:modify project settings to include correct audio path
include correct path in cocos2dx.ini to generate audio binding
include correct path in cocos2dx.ini to generate audio lua binding
issue #2905: modify makefile to include correct header files
issue #2905: modify makefile to refer to correct path
issue #2905: modify makefile to refer to correct path
issue #2771:  Let the sprites added to SpriteBatchNode support physics.
Avoid unnecessary object duplication using passing arguments by reference
Merge pull request #3911 from minggo/iss2905-adjust_folder

[ci skip]SimpleAudioEngine -> audio