Describe ElementTree 1.3; rearrange new-module sections; describe dict views as sets; small edits and items

Removed various unused code and added a way to correctly determine
server vs. workstation via the registry.

serving and which port it is serving it on (I can
never remember the default port number it uses...)

Fix some more functions by hand

Run Antoine Pitrou "untabify" script + manual editions (OS/2 and some
continuation lines).

for rejection of small floats.  Thanks Alexander Belopolsky.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

and creating a single 'if' statement along with a NULL default value for a
variable.

Also clean up a bunch of whitespace.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

Found using Clang's static analyzer.

to "sys.platform == 'mac'" and that is
dead code because it refers to a platform
that is no longer supported (and hasn't been
supported for several releases).

Fixes issue #7908 for the trunk.

Yukihiro Nakadaira noticed a typo in encode_7or8bit that was trying
to special case iso-2022 codecs.  It turns out that the code in
question is never used, because whereas it was designed to trigger
if the payload encoding was eight bit but its output encoding was
7 bit, in practice the payload is always converted to the 7bit
encoding before encode_7or8bit is called.  Patch by Shawat Anand.

Debian unhappy.  The actual contents of the audio clip are unimportant, so
replace it with something that we know is okay.  Guido likes woodpeckers.