pyrorql source now ignore external eids which are themselves coming from another external source already in use by the repository (should have the same uri)
def postinit(vreg):
"""this callback is called at the end of initialization process
and can be used to load explicit modules (views or entities).
For instance :
import someviews
vreg.load_module(someviws)
"""
# from migration import migrate
# migrate(vreg)