Merged the health info on a single line
minor logging cleanup
Health monitor now logs various queue sizes
Removed the ClusterMonitor since queue monitoring is now integrated in the health monitor
Added configurable delay + added some thread metrics
Minor improvement: the off loglevel is optimized, ends the monitor immediately
Merge pull request #707 from pveentjer/improvement/2.x/health-monitor-improvements

Improvement/2.x/health monitor improvements