Merge pull request #49 from chuanweizhang2013/v3luaruntime

fixed release error
Merge pull request #50 from chuanweizhang2013/v3luaruntime

modify version num
Merge pull request #51 from chuanweizhang2013/v3luaruntime

Add support keep screen on when is debug
Merge pull request #52 from chuanweizhang2013/v3luaruntime

modify lua template source code
Merge pull request #53 from cocos2d/v3

update 2d-x
Merge pull request #54 from chuanweizhang2013/v3luaruntime

add window top
Merge pull request #55 from chuanweizhang2013/v3luaruntime

fixed bug  scheduleUpdate
Merge pull request #56 from cocos2d/v3

update 2d-x
Merge branch 'v3' of https://github.com/cocoscodeide/cocos2d-x into v3luaruntime
remove comment