prepare to handle module description correctly.
whitespace cleanup, naming convention cleanup
python: get module descr from module itself.
Get command summary from module.

Finish up work on command summary and description.  The IPython shell
is now fully documented.  More or less :-)
don't spew drivel into the logfiles

especially from the infinite loop tht is the dispatch loop ...
Add proper shell handling to python
Merge pull request #190 from linas/python

Python: fix python command descriptions