xsd-fu cleanup

General:
Use setuptools directly from lib/repository, rather than copying them into multiple locations in the tree and leaving it untidy
Add setuptools for py2.7 to lib/repository

xsd-fu:
Move XSLT transform scripts to xslt subdirectory
Move configuration example to cfg subdirectory
Move python scripts to python subdirectory (except for setup.py)
Update scripts to use new paths where needed.