[Zope] [ZGotW] Fixes (thanks Evan, Jeff, Ross!)

[Tres Seaver]

* I've modified the entry submission to allow selection of 'Structured Text',
  'Plain Text', or 'HTML' as the text format for a question/reply/review.
  I would prefer 'Structured Text' or 'Plain Text' (easier to read the raw
  form and fold into the review), but HTML works, too.

* I fixed the date format in the mail headers, using 'ZopeTime().rfc822()', so
the
  weird '2000 xxx' dates should go away.

-- 
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Tres Seaver         tseaver@palladion.com    713-523-6582
Palladion Software  http://www.palladion.com