issue #5176, refactor UIFocusManager
Revert "issue #5176, fix compile error on other platforms"

This reverts commit 9118d7a98a15dbf84515dfc62e83e906f63af1d0.

Conflicts:
	cocos/ui/UIFocusManager.h
Update submodule
issue #5176, move setting setFirstFocsuedWidget to setFocused method
closed #5176, fix FocusNavigationController
merge from the latest v3
Merge pull request #48 from joshuastray/v3_assets_manager

add widgetreader in local includes
closed #5176, refactor UILayout and focus
Merge pull request #6898 from andyque/5176

add FocusManager, refactor UI framework
[AUTO]: updating luabinding automatically
Merge pull request #6820 from newnon/v3_android_improvements

Android project improvements
[ci skip]
issue #5176, refactor FocusNavigationController
[ci skip]
[AUTO]: updating luabinding automatically
Merge pull request #6902 from CocosRobot/update_lua_bindings_1401157203

[AUTO]: updating luabinding automatically
Merge pull request #6900 from CocosRobot/update_lua_bindings_1401156837

[AUTO]: updating luabinding automatically
Merge pull request #6901 from andyque/fixDpadNavigation

issue #5176, refactor FocusNavigationController
Merge pull request #6848 from newnon/v3_android_jni_improvements

android jni error clear & more readable log
[ci skip]