Added PosixReaddir to DfsBroker interface
QFS Broker

Added config file entries for Qfs Metaserver port and hostname

Added documentation

Fixed race condition bug; aligned memory

Hide . and .. from directory listing
Fix tests
Added server disk usage statistics to RS_METRICS
Replaced RSStats with LoadStatistics class
Reduced calls to Range::get_maintenance_data() in get_statistics()
Fixed level calculation in MaintenanceQueue
Fixed CELL_LIMIT processing
Fixed bug in delete processing in MergeScannerAccessGroup
Moved tranfer log to corresponding /tables/ directory
Added version, start_row, and end_row to hints file
Better error state capture for group commit and rs failover basic tests
Fixed race condition in creation of RemoveOkLogs entity
Changed Hypertable.RangeServer.Range.SplitSize default to 512MB
Fixed race condition in RangeServer-failover-restart test
Changed "dropping task" log message from WARN to INFO
Added system state with READONLY variable and HQL SET command
Improved disk usage monitoring and handling
Added missing posix_readdir() to QFS broker
Updated for 0.9.7.9 release