[maven-release-plugin] prepare release v2.1
[maven-release-plugin] prepare release v2.1

thomasdarimont/auth-server,wallner/auth-server,thomasdarimont/auth-server,osiam/auth-server,tkrille/osiam-auth-server,osiam/auth-server,wallner/auth-server,thomasdarimont/auth-server,wallner/auth-server,tkrille/osiam-auth-server,tkrille/osiam-auth-server,osiam/auth-server