Fixes #3123 : Add a commit to configuration-repository, when making an archive restoration.
Issue 3029: add ModificationId on all API linked to events
Ref #3029 : Add some modification ID
Fixes #3029 : fix git repositories, add commit repository, add modification id to eventLog repository, and some missing modificationId
Fixes #3030 : display rollback in eventLog display
Ref #3002 : Improve feature code
Merge pull request #59 from VinceMacBuche/ust_3002/dev/3029_add_modificationId_in_api_and_backend_rebase_on_3102

Ref #3002 : Add rollback feature to Rudder