Merge pull request #13 from verbunden/av2

artikelverwaltung vervollständigt
modify UserController
modify UserController
Merge pull request #14 from verbunden/usermgr

Usermgr
userlist und filter
Merge pull request #15 from verbunden/interface

userlist und filter
usrmgr
usrmgr
Merge pull request #16 from verbunden/order

bestellung
usrmgr
Merge pull request #18 from verbunden/usermgr

User Manager
order bugfix