Unicode string snippets to larger Unicode strings.

This fix should also go into Python 2.2.1.

instead of possibly twice by using a sequence of types to check for.
Add a message to the ValueError that can be raised.

for zone hours. Fixes #499169.

Based on comment sent to python-docs.

This closes SF bug #499505.

- clear error after failing PyArg_Parse()

- print traceback
- don't use fprintf()
- clear exception (implied by PyErr_Print())

further devel of highlight handling

adjust configuration sources accordingly
move SearchBindings.py into the attic now

plus misc fixes cleanups for new config system

starts with "-psn_". This means the drag-and-drop continues to work as
expected, but we can now also do
/Applications/Python.app/Contents/MacOS/python script.py
from the command line, which is a lot easier with debugging. Pressing <option>
at this point also has the expected effect of opening the options dialog!

- fixed GetThemeTextDimensions(): it has an in/out Point arg, not just out.

- Added a bunch of calls as functions with an optional
  MenuObj first argument. The same calls already
  exist as methods, but then the first arg isn't
  optional... The method versions could go as far as I'm
  concerned. Jack?

Added some support for Uicode arguments. Still leaves something to be desired, especially because of poor unicode support in PyArg_ParseTuple.