fixed mongodb cursor error
added paypal_id column
changed POST to GET on connecy paypal
fix backend missing module
added missing User
Merge pull request #15 from dogukantufekci/dogukan

Merge pull request #14 from dogukantufekci/master
Merge pull request #17 from dogukantufekci/veysel

Merge pull request #16 from dogukantufekci/dogukan
Merge pull request #18 from dogukantufekci/master

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