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.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Armature
issue #2768:Modify armature test sample and skip some functions to lua
issues #2899:Fix application will crash when back to background on Android.
issues #2914:removeSpriteFramesFromFile() crashes if file doesn't exist
issue #2768:Modify the linux make files of the liblua 、the testlua and hellolua projects
Fix miss project configuration for CoreMotion.
Merge pull request #3905 from Dhilan007/di2914

issues #2914:removeSpriteFramesFromFile() crashes if file doesn't exist
Update CHANGELOG[ci skip]
Merge pull request #3906 from Dhilan007/di2677

Fix miss project configuration for CoreMotion.
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-x into di2899
rename some variable
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Armature

Conflicts:
	samples/samples.xcodeproj/project.pbxproj
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Armature
Merge pull request #3599 from samuele3hu/Armature

issue #2768:Add Armature lua binding and releated test samples
Update CHANGELOG [ci skip]
Merge pull request #3903 from Dhilan007/di2899

issues #2899:Fix application will crash when back to background on Andro...