[setuptools] Automaticly move data content of a cubicweb's egg in the proper location. This should be done once during the first import of the cubicweb module. This is an ugly hack because setuptools lake proper post install hooks.

# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s entity's classes"""