#1 Allow thoughstream to load with Python 2.2 and wxPython 2.3

[Dave Bauer]

for thoughtstream desktop:

This fixes some changes in the module names and method
names for xml.sax and one change in how a wxWindows
method is called.

I also too the liberty of adding an <?xml
version="1.0"?> to the save file code so that the files
will be valid xml.

[Dave Bauer]

This is the patch I thought I uploaded previously