Upgrade Jenkins OSS LTS from
Messages from/to master don't get pulled if the CJP Client Master "messaging" database is corrupted or misaligned with CJP Operations Center transport database.
Corrupted messaging database not properly detected and
NullPointerException makes Jenkins not start.
When messaging database is corrupted it should be automatically re-created.
Health of masters is now asynchronously calculated so it does not block UI requests.
Allow renaming of shared agents and clouds.