[win32] glfw keyboard callback is enabled now. Enables KeyboardTest for win32.
[win32] clear keycode map before init eglview.
Fixing armature test crash.
Keypad event fix for js and lua bindings.
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-x into keyboard_test

Conflicts:
	samples/samples.xcodeproj/project.pbxproj
Merge pull request #3664 from dumganhar/keyboard_test

[win32] glfw keyboard callback is enabled now. Enables KeyboardTest for win32.