closes #55 made Mini waitForObservers() wait for in progress worker threads
Merge pull request #61 from keith-turner/Accismus-55

closes #55 made Mini waitForObservers() wait for in progress worker thre...
Closes #39. OracleClient should be notified when a leading server changes
Merge pull request #40 from cjnolet/oracleFailover

A little more robust Oracle failover