logging and statsd metrics subsystem and initial instrumentation
logging and metrics instrumentation with stack entries
reverted back to unique ptr; and corrected copy/paste error with closing cursor after transaction
dbstl stupidity strikes again; its inability to deal with null is bad; but my attempts to circumvent that by writing to the db invalidated its cursors, and resulted in invalid reads all over the place... the only solution without abandoning dbstl entirely (which is probably a better solution long term; but requires too much work right now and I have more functionality to implement... ) is to filter-out and replace nulls with an ordinal when writing, and replace that ordinal with nulls upon reading