low: command: Add -h and --help as aliases to help
dev: idmgmt: Remove excessive debug logging
high: cibconfig: Ban containers stealing children (bnc#878112)

When creating a new container containing a child already in
another container, don't silently steal the child.
Merge pull request #26 from krig/878112

Ban containers stealing children (bnc#878112)
test: Update edit regression test with new error
medium: cibconfig: Detect broken child relationship (bnc#878112)
Merge pull request #27 from krig/bnc878112

medium: cibconfig: Detect broken child relationship (bnc#878112)