Merge pull request #1448 from dingpinglv/Iss3501_ReleaseV2.2.2

Fixed #3501: update reference of submodule.
issue #3419 ccs.Label clone bug
Merge pull request #1452 from xingsenma/develop

issue #3419 ccs.Label clone bug
Fixed #3501: correct a mistake that getContentSize returns wrong size when setFontSize or setFontName called.