Merge pull request #1024 from dingpinglv/FixedAddCloneToActionProgressTimer

Fixed add clone to action progress timer
Fixed bug when use label setString ,the  parameter is not string
Merge pull request #1025 from xingsenma/other

Fixed bug when use label setString ,the  parameter is not string
fixed sync reference of submodules
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into FixedAddCloneToActionProgressTimer