Only use the Python path separator for PYTHONPATH; use os.pathsep for everything
else.


git-svn-id: https://svn.salilab.org/imp/trunk@16983 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
clean up premature commit

git-svn-id: https://svn.salilab.org/imp/trunk@16984 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
make older cmake versions happy

git-svn-id: https://svn.salilab.org/imp/trunk@16985 e91f8c7b-0e32-4433-a9ac-4502d39a4eab