* untested connection count management code.
* add digit to identify location of identical error messages.
* unit tests created, code working and integrated
* subtle changes to smoothing algorithm, close ... but still not perfect
* use scheduler queue() instead of post() to avoid occassional extreme latencies. throughput improved!
* temporary hack to hardcode queue size much lower
* force direct calls to post() to instead route through queue()
* correct issue with previous check-in, but performance has dropped with this on
* revert hardcoded value in SchedulerFeature.cpp
* queue to high priority to be consistent with other Aql actions
* backout all edits to Scheduler.cpp and Scheduler.h
* oops, forgot to remove some testing code.
* 3.4 merge/update
* add changelog entry