Update readme to reflect a few things that need to be done and explain motivations.
Funnel all output through a single PrintStream.
Log some things.
Stop after some maximum number of entries.
RowMeta becomes a facility for looking up any file data.
Used cached file lengths when possible.
Flush file meta information when the file itself is flushed.
Add an independent query test.
Fix lock removal bug (heavy-handed).

Just blow away the row. I would have preferred to set the column to zero.
Update README on how I plan to do `allFiles()`