Skip IClientAPIs that don't implement IStatsCollector (such as NPCAvatar) from the "show queues" console report to stop screwing up formatting.

"show pquques" already did this
minor: correct the usage statement on the "show image queues" console command - should not have been "image queues show"
minor: remove long unused state queue from "show queues" console reports
Merge branch 'justincc-master'