Serious reorganization

src/clstr is now the directory that will be placed
in x/lib/python2.x/dist-utils/ and contains the lib
and common code for CLSTR. All source files have been
modified for this.

Note: YOU MUST define (export) PYTHONPATH to include
the above dir since that path is most likely not included
in the PYTHONPATH as the code assumes.

The idea is that the setup.py will rebuild the clstr.wpath
modules for system specific things... todo.