Merge pull request #37 from shujunqiao/myWork

modify rect of IronMan.
fix back main menu issue.
Merge branch 'master' of https://github.com/yuye-liu/cocostudioSampleGmae into myMaster
Merge pull request #38 from RaoZiJian/myMaster

My master
modify attack time.
Merge branch 'master' of https://github.com/yuye-liu/cocostudioSampleGmae into myWork