Merge pull request #56 from cca-team3-webproject/master

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Merge pull request #60 from cca-team3-webproject/master

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Merge pull request #64 from cca-team3-webproject/kwak

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Merge pull request #65 from cca-team3-webproject/goodbye

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Merge pull request #68 from cca-team3-webproject/master

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