combine event, eventmatch, profile api together, add numOfRequester to events page
merge with Max
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Merge branch 'master' of https://github.com/tedsunnyday/SE-Server
Merge pull request #16 from yuanxiacpp/master

Merge changes with Maxwell
Merge branch 'master' of https://github.com/tedsunnyday/SE-Server

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:wq
 the commit.