[2.16] User Object Testcases (RU, TP)
[2.16][Refactor] User Class Testcases refactored (RU, TP)
[2.16] delete old Testcase (RU, TP)
[2.16] add User Class (RU, TP)
[2.16] User Class json zugriff korrigiert (RU, TP)
[2.16][Refactor] passing User object from Login and Register instead of uid (RU, TP)
[2.16.1][Refactor] User to Singelton, no putExtra() in Login and Register, Testcases refactored
[2.16.1]Merge branch 'master' into User(RU, TP)