Log Message:
Update to 2.0.6.

Changes:
2.0.3
 - SERVER-4547: Disable full restore of sharded cluster
 - SERVER-3817:Increment opcounters for bulk insert
 - SERVER-4699: mongos can segfault after primary failover

2.0.4
 - SERVER-5142: double check after lock that ShardChunkManager
   in trySetVersion needs to be rebuilt 
 - SERVER-5135: Journal compression ratio reporting is incorrect
 - SERVER-5177: fetching of docs in initial sync can assert

2.0.5
 - SERVER-5754: Initial sync assertion error with 2.0.5-rc0
 - SERVER-5110: ReplicaSetMonitor::check not thread safe wrt _master 
 - SERVER-5569: objid6.js failing on dur_passthrough

2.0.6
 - SERVER-4758: OplogReader has no socket timeout
 - SERVER-4750: Secondary syncs to another secondary that has slaveDelay > 0
 - SERVER-5353: _id query on capped collection warning can be
   printed incorrectly