Bump version number.

Fix two errors

Update the patch and bug counts

Add removal of 3-arg pow() for floats
Rewrite introduction a bit

Rewrite snprintf() item a bit
Bump version number

Minor grammatical changes, reformattings, and an error fix from Keith Briggs

Correct error noticed by Keith Briggs
Re-indent a paragraph

Add string.ascii_letters
Remove duplicate MBCS paragraph

Note new Windows installer

Mention additional new imaplib.py features

(Don't expect to see an updated version of the Web page until around the 28th
   of July.  Vacation time!)

Add new low-level API for interpreter introspection
Bump version number.

Bump version number
Insert a few blank lines here and there

Note the actual date of 2.1's release

Correct grammatical error

Credit both Neil and Tim for generators
Fix indentation of a few paragraphs

   are merged to a single hyphen.
Delete forgotten CVS conflict marker

Write description of .encode()/.decode for the Unicode section
Bump version number

* iterators
* generators
* copied the nested scopes section from the 2.1 article
* standard library changes

Comment out descr-branch section
Update e-mail address
    (Time to begin writing this...)

   but don't plan on actually writing any text until, ooh, say, July or
   thereabouts.

Add Unixware 7 port
Ready for RC1
Minor rewrites

Mention the new ports

Add PyUnit and sys.excepthook