Forgot the change-log item for the MOVE fix
Fix the whitespace in Tpaction

- Untabify
- Reindent
- Add some indentation clues to make caml-mode happy
- Break some overly long lines
- Strip trailing whitespace
Be more selective about where and when we create an override
Some work on traify

- Refactor the code to reduce repetition.
- Differentiate between sound-bearing strings and otherwise,
  by traifying all sound-bearing strings before any other.
- Don't open dout and traout for writing until we actually need to,
  thus avoiding the silly problem with the contents of those files
  being lost if there was an error.