Document MissingH/Quantity and see if it has tests yet

Test forceEitherMsg

Cmd: pOpenBoth -- read and write, use forkIO for one of them

tests for new Parsec stuff

HVFStest:
  test all sorts of exceptions
  test .. et al

FTP server:
  timeouts
  Proper error checking lots of places, esp. runDataChan

CSVtest:
  Test CSV generation

Add Quantity and ProgressTracker to README

--------------------------------------------------
From: Jeremy Shaw 
The patch to MissingH.HUnit includes a modified version of the 'tests' function
from Test.QuickCheck. That module has the license:

-- Module      :  Test.QuickCheck
-- Copyright   :  (c) Koen Claessen, John Hughes 2001
-- License     :  BSD-style (see the file libraries/base/LICENSE)

If this is problematic, let me know, and I can rewrite it.

j.
