[NEXUS-7768] Replace Kenai modello config with a capability
[NEXUS-7768] Implement Kenai similar to Crowd
[NEXUS-7768] Log before throwing as Nexus does not log exceptions thrown by realms
[NEXUS-7768] Simplify
Merge remote-tracking branch 'origin/master' into NEXUS-7768-kenai-config
[NEXUS-7768] checkNotNull
Merge remote-tracking branch 'origin/master' into NEXUS-7768-kenai-config
Merge pull request #912 from sonatype/NEXUS-7768-kenai-config

[NEXUS-7768] Replace Kenai modello config with a capability