fixed no effect with stopping tween between two frames
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
change tab to 4 space
change tab to 4 space
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/2youyouo2/cocos2d-x into v3

Conflicts:
	external
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #6786 from CocosRobot/update_cocosfiles_1400289505

[AUTO][ci skip]: updating cocos2dx_files.json
Updates the config files for luabindings.
Merge pull request #6787 from dumganhar/v3

Updates the config files for luabindings.
[AUTO]: updating luabinding automatically
Merge pull request #6788 from CocosRobot/update_lua_bindings_1400296789

[AUTO]: updating luabinding automatically
Merge pull request #17 from chuanweizhang2013/v3luaruntime

modify vec2
Merge pull request #6789 from cocoscodeide/v3

update template project vect
Updates download-deps.py for execute this python where not in the root of cocos2d-x.