MenuMaker Code

(quick) fixed a bug concerned with creation of empty keyword.

Added support for JWM.

More authors fixes.

Fixed authors records.
Fixed .desktop categories issue.

Fixed a Python2 compatibility issue.

Merged in the doc fixes provided by Chris Mayo.

David <doark@...>
Made MenuMaker/__init__.py line 61 FIXME notice. Code is now faster for
large depths and slightly slower for level == 1. Timeit reports 0.48091 for
level 1 as opposed to 0.42501 for the previous code and 0.49308 for my code
at level 5 as opposed to 0.95356 for the original code.
Prophet/Legacy/Shell.py on line 154 FIXME notice. Added an entry for rxvt,
it's a totally different beast from xvt.
Added a separate shell entry for rxvt in __init__.py since the previously
metioned change would not make sense without it.
Increased speed again by changing the positions of the import statements in
share/menumaker/MenuMaker/CLI.py about line 218. Now anything that is not
used is not imported.

David <doark@...>
Fixed Bugs I introduced (they were duplicate statements)
Worked around unicode decoding error in .desktop files.

pep8 conformance changes PATCH set 3 of 3
Forgot to change Paths Keywords and Config .py files.
Ran pep8 over the code in aggressive mode. Now the code is very
close to the guidelines.
Feel free to change the code to be a little more to your tastes.
This should not have altered the code by very much.
The main difference is that the lines are wrapped.

pep8 conformance changes PATCH set 1 of 2
Ran autopep8 over the code (nonagressive). Now the code better
conforms to the pep8 python guidelines.
All whitespace, no actual changes.