Revision 655962

HBASE-624   Master will shut down if number of active region servers is zero even if shutdown was not requested

M HMaster

- Moved HMaster.quiescedMetaServers to ServerManager.quiescedServers and changed name since only servers serving user regions get quiesced.
- Removed HMaster.tableInCreation - not used

M ServerManager

- Don't check if quiescedServers.get() >= serversToServerInfo.size() unless master.shutdownRequested is true.

M HRegionServer

- Change order of checks in main loop of HRegionServer.run, so that booleans are checked before we check the number of messages to process
- Don't break out of main loop if restart or stop requested - stop is checked at top of loop and we need to continue rather than break out of main loop if restart was requested