Add middleware packages
Update express to version 4
Merge branch 'update-express'
Merge branch 'master' into replace-pairs-with-gifts-and-receives
Update old model in commentService and randoService
Add backwardCompatibility module and Update API with auth middleware
Update commentServiceTest
Fix randoServiceTest
Refactor access without spam
Update some tests in userServiceTest
Add accessTest
Fix accessTest
Delete mongooseMock
Delete test of config
Refactor passwordUtil to independent module
Merge branch 'replace-pairs-with-gifts-and-receives'