18012, 16800, maybe 17565 and 13278:
Integrate contributions from Ben Bucksch (mozilla@bucksch.org)
and Daniel Brattell (bratell@lysator.liu.se) to improve formatted
plaintext output, including adding text style indicators, improving
table output and wrapping, and fixing several wrapping/whitespace bugs.
Also update the auto tests to reflect some of the bugs recently fixed.
r=myself,mozilla@bucksch.org,bratell@lysator.liu.se
format=flowed for mail plaintext output. Restructures the plaintext
output wrapping code, wholly or partially fixes numerous bugs in plaintext
output (13278, 13442, 17823, 17824, 13753, 12551), makes the automated
tests work on Windows and adds some new automated tests. r=akkana.