Merge branch 'worblehat-103'
Merge branch 'worblehat-106' of github.com:codecentric/worblehat-ShockwaveRebels into worblehat-106
DeleteBook tests added
DeleteBook implementiert
Merge branch 'worblehat-106' of github.com:codecentric/worblehat-ShockwaveRebels into worblehat-106
ert
new Test
DeleteBook test finished
Delete One Book funzt!
Merge branch 'master' into worblehat-106
Acceptance test for deleting a single book