Moved group tree construction to infrastructure module
New couple builder
Changelog, version 2.11.1
Merge branch 'master' into release-2.11
Fix for default locking sync manager
Changelog, version 2.11.2
Fix for couple build mastermind utils
Changelog, version 2.11.3
Temporary increased mastermind startup time to 120 seconds
Changelog, version 2.11.4