flow reconcile engine -- apply review comments

...n/java/net/floodlightcontroller/flowcache/FCQueryObj.java

...ava/net/floodlightcontroller/flowcache/FRQueryBvsAcl.java

...et/floodlightcontroller/flowcache/FRQueryBvsMatchMac.java

...floodlightcontroller/flowcache/FRQueryBvsMatchSubnet.java

...dlightcontroller/flowcache/FRQueryBvsMatchSwitchPort.java

...et/floodlightcontroller/flowcache/FRQueryBvsMatchTag.java

...t/floodlightcontroller/flowcache/FRQueryBvsMatchVlan.java

...et/floodlightcontroller/flowcache/FRQueryBvsPriority.java

...ghtcontroller/flowcache/FRQueryDevicePropertyChanged.java

...t/floodlightcontroller/flowcache/FRQueryVRSArpChange.java

.../floodlightcontroller/flowcache/FRQueryVRSRuleChange.java

.../floodlightcontroller/flowcache/FlowReconcileManager.java

...et/floodlightcontroller/flowcache/FlowReconcileQuery.java

...ghtcontroller/flowcache/FlowReconcileQueryDeviceMove.java

...lightcontroller/flowcache/FlowReconcileQueryPortDown.java

...ightcontroller/flowcache/IFlowReconcileEngineService.java

...floodlightcontroller/flowcache/IFlowReconcileService.java

...net/floodlightcontroller/flowcache/PendingSwitchResp.java

...loodlightcontroller/flowcache/PortDownReconciliation.java

.../floodlightcontroller/flowcache/PriorityPendingQueue.java