removes old coment
removes setting for custom datadir location
whitespace and sundry cleanup
updates role fetcher func
comments and cleanup SQL in getPriorRecords()
cleans up SQL in get_db_records()
type juggling to prevent int  squashing
changes property names to ones that exist
temporarily disabling
refactor timespent method for simplicity, correctness, error-handling, readablity
refactor backfill(), re-enable link
backfill needs to be run differently from these
refactor backfill() semantics; cleanup get_db_sums() SQL
no reason for this
clarifies links purposes
eliminates page-killing attempt to render the full XML document
re-enables preview link
don't need no heading for raw XML