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 #2768:Add Armature lua binding and releated test samples
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Armature

Conflicts:
	extensions/cocos-ext.h
issue #2768:Add a newline
issue #2768:Modify testlua and hellolua sample's linux mayflies.
issues #2834:Use Android standalone toolchain on windows to remove the dependence of cygwin
issue #2771:  add tag and enable functions to physics classes
issues #2861:fix memory leak when loading plist file using SpriteFrameCache.
issues #2774:AssetsManager Test downloading progress label not sync with actual download.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss2771_physical
Merge pull request #3857 from Dhilan007/develop

issues #2834:Use Android standalone toolchain on windows to remove the d...
modify download addresss in README
Merge pull request #3863 from minggo/change-download-addr

[ci skip]modify download addresss in README
issue #2771:  refactor PhysicsTest
Fix use create_project.py to create project not rename APPNAME at build_native.cmd.
Merge pull request #3865 from Dhilan007/develop

[ci skip]Fix use create_project.py to create project not rename APPNAME at build_...
issue #2771:  move _physicsBody from sprite to node
issue  #2792 : Performance Test: Sprite drawing
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into developPerformace
issue #2771:  separate the PhysicsBody and the PhysicsShape.